56215064 has 8 divisors (see below), whose sum is σ = 105403260. Its totient is φ = 28107528.

The previous prime is 56215063. The next prime is 56215067. The reversal of 56215064 is 46051265.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56215063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3513434 + ... + 3513449.

Almost surely, 2^56215064 is an apocalyptic number.

It is an amenable number.

56215064 is a deficient number, since it is larger than the sum of its proper divisors (49188196).

56215064 is a wasteful number, since it uses less digits than its factorization.

56215064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026889 (or 7026885 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 56215064 is about 7497.6705715842. The cubic root of 56215064 is about 383.0753759575.

The spelling of 56215064 in words is "fifty-six million, two hundred fifteen thousand, sixty-four".