55331125 has 32 divisors (see below), whose sum is σ = 72483840. Its totient is φ = 42120000.

The previous prime is 55331119. The next prime is 55331137. The reversal of 55331125 is 52113355.

It is not a de Polignac number, because 55331125 - 2⁵ = 55331093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 55331125.

It is a congruent number.

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, 422310 + ... + 422440.

It is an arithmetic number, because the mean of its divisors is an integer number (2265120).

Almost surely, 2^55331125 is an apocalyptic number.

It is an amenable number.

55331125 is a deficient number, since it is larger than the sum of its proper divisors (17152715).

55331125 is a wasteful number, since it uses less digits than its factorization.

55331125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 276 counting only the distinct ones).

The product of its digits is 2250, while the sum is 25.

The square root of 55331125 is about 7438.4894299851. The cubic root of 55331125 is about 381.0569030222.

The spelling of 55331125 in words is "fifty-five million, three hundred thirty-one thousand, one hundred twenty-five".