55207115256 has 64 divisors (see below), whose sum is σ = 146829300480. Its totient is φ = 17237767680.

The previous prime is 55207115251. The next prime is 55207115279. The reversal of 55207115256 is 65251170255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55207115251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234556 + ... + 406731.

It is an arithmetic number, because the mean of its divisors is an integer number (2294207820).

Almost surely, 2^55207115256 is an apocalyptic number.

It is an amenable number.

55207115256 is an abundant number, since it is smaller than the sum of its proper divisors (91622185224).

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

55207115256 is a wasteful number, since it uses less digits than its factorization.

55207115256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641524 (or 641520 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 55207115256 in words is "fifty-five billion, two hundred seven million, one hundred fifteen thousand, two hundred fifty-six".