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55005550023 = 385721394613
BaseRepresentation
bin110011001110100101…
…100001010111000111
312020222102122110101110
4303032211201113013
51400122410100043
641134051500103
73655042314024
oct631645412707
9166872573343
1055005550023
1121367220956
12a7b12b7633
135257ac2848
14293b43854b
15166e045b33
hexcce9615c7

55005550023 has 8 divisors (see below), whose sum is σ = 73426315248. Its totient is φ = 36627575744.

The previous prime is 55005550003. The next prime is 55005550063. The reversal of 55005550023 is 32005550055.

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

It is a cyclic number.

It is not a de Polignac number, because 55005550023 - 210 = 55005548999 is a prime.

It is a super-2 number, since 2×550055500232 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005550003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10694736 + ... + 10699877.

It is an arithmetic number, because the mean of its divisors is an integer number (9178289406).

Almost surely, 255005550023 is an apocalyptic number.

55005550023 is a deficient number, since it is larger than the sum of its proper divisors (18420765225).

55005550023 is a wasteful number, since it uses less digits than its factorization.

55005550023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21395473.

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

The spelling of 55005550023 in words is "fifty-five billion, five million, five hundred fifty thousand, twenty-three".

Divisors: 1 3 857 2571 21394613 64183839 18335183341 55005550023