55864375 has 30 divisors (see below), whose sum is σ = 80492984. Its totient is φ = 37968000.

The previous prime is 55864357. The next prime is 55864423. The reversal of 55864375 is 57346855.

It is not a de Polignac number, because 55864375 - 2⁵ = 55864343 is a prime.

It is a Duffinian number.

Its product of digits (504000) is a multiple of the sum of its prime divisors (125).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 494319 + ... + 494431.

Almost surely, 2^55864375 is an apocalyptic number.

55864375 is a deficient number, since it is larger than the sum of its proper divisors (24628609).

55864375 is an frugal number, since it uses more digits than its factorization.

55864375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 125 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 55864375 is about 7474.2474537575. The cubic root of 55864375 is about 382.2771281989.

The spelling of 55864375 in words is "fifty-five million, eight hundred sixty-four thousand, three hundred seventy-five".