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2550555030 = 235731378501
BaseRepresentation
bin1001100000000110…
…0110000110010110
320120202022121202010
42120001212012112
520210420230110
61101031125050
7120130234332
oct23001460626
96522277663
102550555030
1110997a3821
125b2213786
1331855037a
141a2a507c2
15eddb5020
hex98066196

2550555030 has 64 divisors (see below), whose sum is σ = 6251214528. Its totient is φ = 665856000.

The previous prime is 2550555011. The next prime is 2550555037. The reversal of 2550555030 is 305550552.

It is a super-2 number, since 2×25505550302 = 13010661922116601800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550555037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295780 + ... + 304280.

It is an arithmetic number, because the mean of its divisors is an integer number (97675227).

Almost surely, 22550555030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2550555030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3125607264).

2550555030 is an abundant number, since it is smaller than the sum of its proper divisors (3700659498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2550555030 is a wasteful number, since it uses less digits than its factorization.

2550555030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721.

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 2550555030 is about 50503.0200087084. The cubic root of 2550555030 is about 1366.2963224822.

The spelling of 2550555030 in words is "two billion, five hundred fifty million, five hundred fifty-five thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 73 137 146 219 274 365 411 438 685 730 822 1095 1370 2055 2190 4110 8501 10001 17002 20002 25503 30003 42505 50005 51006 60006 85010 100010 127515 150015 255030 300030 620573 1164637 1241146 1861719 2329274 3102865 3493911 3723438 5823185 6205730 6987822 9308595 11646370 17469555 18617190 34939110 85018501 170037002 255055503 425092505 510111006 850185010 1275277515 2550555030