55120830625 has 20 divisors (see below), whose sum is σ = 78718851904. Its totient is φ = 37797138000.

The previous prime is 55120830581. The next prime is 55120830647. The reversal of 55120830625 is 52603802155.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-55120830625 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6295149 + ... + 6303898.

Almost surely, 2^55120830625 is an apocalyptic number.

It is an amenable number.

55120830625 is a deficient number, since it is larger than the sum of its proper divisors (23598021279).

55120830625 is an equidigital number, since it uses as much as digits as its factorization.

55120830625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599074 (or 12599059 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 55120830625 in words is "fifty-five billion, one hundred twenty million, eight hundred thirty thousand, six hundred twenty-five".