55685075 has 24 divisors (see below), whose sum is σ = 72316800. Its totient is φ = 42479360.

The previous prime is 55685051. The next prime is 55685101. The reversal of 55685075 is 57058655.

It is not a de Polignac number, because 55685075 - 2⁸ = 55684819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64094 + ... + 64956.

It is an arithmetic number, because the mean of its divisors is an integer number (3013200).

Almost surely, 2^55685075 is an apocalyptic number.

55685075 is a deficient number, since it is larger than the sum of its proper divisors (16631725).

55685075 is a wasteful number, since it uses less digits than its factorization.

55685075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 55685075 is about 7462.2432954173. The cubic root of 55685075 is about 381.8677095530.

The spelling of 55685075 in words is "fifty-five million, six hundred eighty-five thousand, seventy-five".