55231875 has 50 divisors (see below), whose sum is σ = 103195092. Its totient is φ = 29430000.

The previous prime is 55231871. The next prime is 55231877. The reversal of 55231875 is 57813255.

55231875 is a `hidden beast` number, since 552 + 31 + 8 + 75 = 666.

It is not a de Polignac number, because 55231875 - 2² = 55231871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55231871) by changing a digit.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 50080 + ... + 51170.

Almost surely, 2^55231875 is an apocalyptic number.

55231875 is a deficient number, since it is larger than the sum of its proper divisors (47963217).

55231875 is an equidigital number, since it uses as much as digits as its factorization.

55231875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1099 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 55231875 is about 7431.8150542112. The cubic root of 55231875 is about 380.8289268558.

The spelling of 55231875 in words is "fifty-five million, two hundred thirty-one thousand, eight hundred seventy-five".