55717875 has 40 divisors (see below), whose sum is σ = 103893504. Its totient is φ = 29710800.

The previous prime is 55717853. The next prime is 55717913. The reversal of 55717875 is 57871755.

55717875 is a `hidden beast` number, since 5 + 571 + 7 + 8 + 75 = 666.

It is not a de Polignac number, because 55717875 - 2¹¹ = 55715827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55717875.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7374 + ... + 12876.

Almost surely, 2^55717875 is an apocalyptic number.

55717875 is a deficient number, since it is larger than the sum of its proper divisors (48175629).

55717875 is an equidigital number, since it uses as much as digits as its factorization.

55717875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530 (or 5511 counting only the distinct ones).

The product of its digits is 343000, while the sum is 45.

The square root of 55717875 is about 7464.4407024237. The cubic root of 55717875 is about 381.9426716049.

The spelling of 55717875 in words is "fifty-five million, seven hundred seventeen thousand, eight hundred seventy-five".