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55251310 = 255525131
BaseRepresentation
bin1101001011000…
…1000101101110
310211222001112211
43102301011232
5103121020220
65252121034
71240425352
oct322610556
9124861484
1055251310
1129208144
121660617a
13b5a66aa
1474a3462
154cb5b5a
hex34b116e

55251310 has 8 divisors (see below), whose sum is σ = 99452376. Its totient is φ = 22100520.

The previous prime is 55251307. The next prime is 55251347. The reversal of 55251310 is 1315255.

55251310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×552513102 = 6105414513432200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762556 + ... + 2762575.

It is an arithmetic number, because the mean of its divisors is an integer number (12431547).

Almost surely, 255251310 is an apocalyptic number.

55251310 is a deficient number, since it is larger than the sum of its proper divisors (44201066).

55251310 is a wasteful number, since it uses less digits than its factorization.

55251310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525138.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55251310 is about 7433.1224932729. The cubic root of 55251310 is about 380.8735903297.

Adding to 55251310 its reverse (1315255), we get a palindrome (56566565).

The spelling of 55251310 in words is "fifty-five million, two hundred fifty-one thousand, three hundred ten".

Divisors: 1 2 5 10 5525131 11050262 27625655 55251310