55157210256 has 20 divisors (see below), whose sum is σ = 142489459952. Its totient is φ = 18385736736.

The previous prime is 55157210189. The next prime is 55157210291. The reversal of 55157210256 is 65201275155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574554226 + ... + 574554321.

Almost surely, 2^55157210256 is an apocalyptic number.

It is an amenable number.

55157210256 is an abundant number, since it is smaller than the sum of its proper divisors (87332249696).

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

55157210256 is a wasteful number, since it uses less digits than its factorization.

55157210256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149108558 (or 1149108552 counting only the distinct ones).

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

The spelling of 55157210256 in words is "fifty-five billion, one hundred fifty-seven million, two hundred ten thousand, two hundred fifty-six".