56631955 has 8 divisors (see below), whose sum is σ = 68477904. Its totient is φ = 44959200.

The previous prime is 56631907. The next prime is 56631961. The reversal of 56631955 is 55913665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56631955 - 2¹⁵ = 56599187 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42576 + ... + 43885.

It is an arithmetic number, because the mean of its divisors is an integer number (8559738).

Almost surely, 2^56631955 is an apocalyptic number.

56631955 is a deficient number, since it is larger than the sum of its proper divisors (11845949).

56631955 is a wasteful number, since it uses less digits than its factorization.

56631955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86597.

The product of its digits is 121500, while the sum is 40.

The square root of 56631955 is about 7525.4205862530. The cubic root of 56631955 is about 384.0200071860.

The spelling of 56631955 in words is "fifty-six million, six hundred thirty-one thousand, nine hundred fifty-five".