55831771625 has 32 divisors (see below), whose sum is σ = 79664532480. Its totient is φ = 38269032000.

The previous prime is 55831771579. The next prime is 55831771657. The reversal of 55831771625 is 52617713855.

It is not a de Polignac number, because 55831771625 - 2²⁴ = 55814994409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2386736 + ... + 2410014.

It is an arithmetic number, because the mean of its divisors is an integer number (2489516640).

Almost surely, 2^55831771625 is an apocalyptic number.

It is an amenable number.

55831771625 is a deficient number, since it is larger than the sum of its proper divisors (23832760855).

55831771625 is a wasteful number, since it uses less digits than its factorization.

55831771625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26042 (or 26032 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 50.

The spelling of 55831771625 in words is "fifty-five billion, eight hundred thirty-one million, seven hundred seventy-one thousand, six hundred twenty-five".