56506716 has 36 divisors (see below), whose sum is σ = 163242352. Its totient is φ = 16144704.

The previous prime is 56506693. The next prime is 56506717. The reversal of 56506716 is 61760565.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56506717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111865 + ... + 112368.

Almost surely, 2^56506716 is an apocalyptic number.

It is an amenable number.

56506716 is an abundant number, since it is smaller than the sum of its proper divisors (106735636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56506716 is a wasteful number, since it uses less digits than its factorization.

56506716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224250 (or 224245 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 56506716 is about 7517.0949175862. The cubic root of 56506716 is about 383.7367173127.

The spelling of 56506716 in words is "fifty-six million, five hundred six thousand, seven hundred sixteen".