55257199692 has 48 divisors (see below), whose sum is σ = 135851654400. Its totient is φ = 17432642880.

The previous prime is 55257199667. The next prime is 55257199727. The reversal of 55257199692 is 29699175255.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117534 + ... + 352602.

It is an arithmetic number, because the mean of its divisors is an integer number (2830242800).

Almost surely, 2^55257199692 is an apocalyptic number.

It is a pronic number, being equal to 235068×235069.

It is an amenable number.

55257199692 is an abundant number, since it is smaller than the sum of its proper divisors (80594454708).

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

55257199692 is a wasteful number, since it uses less digits than its factorization.

55257199692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236126 (or 236124 counting only the distinct ones).

The product of its digits is 15309000, while the sum is 60.

The spelling of 55257199692 in words is "fifty-five billion, two hundred fifty-seven million, one hundred ninety-nine thousand, six hundred ninety-two".