56111975 has 6 divisors (see below), whose sum is σ = 69578880. Its totient is φ = 44889560.

The previous prime is 56111969. The next prime is 56111983. The reversal of 56111975 is 57911165.

It is a happy number.

It is not a de Polignac number, because 56111975 - 2⁶ = 56111911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122215 + ... + 1122264.

It is an arithmetic number, because the mean of its divisors is an integer number (11596480).

Almost surely, 2^56111975 is an apocalyptic number.

56111975 is a deficient number, since it is larger than the sum of its proper divisors (13466905).

56111975 is a wasteful number, since it uses less digits than its factorization.

56111975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244489 (or 2244484 counting only the distinct ones).

The product of its digits is 9450, while the sum is 35.

The square root of 56111975 is about 7490.7926816860. The cubic root of 56111975 is about 382.8410673392.

The spelling of 56111975 in words is "fifty-six million, one hundred eleven thousand, nine hundred seventy-five".