56218964 has 6 divisors (see below), whose sum is σ = 98383194. Its totient is φ = 28109480.

The previous prime is 56218957. The next prime is 56218991. The reversal of 56218964 is 46981265.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34128964 + 22090000 = 5842^2 + 4700^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7027367 + ... + 7027374.

It is an arithmetic number, because the mean of its divisors is an integer number (16397199).

Almost surely, 2^56218964 is an apocalyptic number.

It is an amenable number.

56218964 is a deficient number, since it is larger than the sum of its proper divisors (42164230).

56218964 is a wasteful number, since it uses less digits than its factorization.

56218964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14054745 (or 14054743 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 56218964 is about 7497.9306478521. The cubic root of 56218964 is about 383.0842345523.

The spelling of 56218964 in words is "fifty-six million, two hundred eighteen thousand, nine hundred sixty-four".