56287716 has 36 divisors (see below), whose sum is σ = 137312112. Its totient is φ = 17944784.

The previous prime is 56287703. The next prime is 56287727. The reversal of 56287716 is 61778265.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1915 + ... + 10781.

Almost surely, 2^56287716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56287716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68656056).

56287716 is an abundant number, since it is smaller than the sum of its proper divisors (81024396).

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

56287716 is a wasteful number, since it uses less digits than its factorization.

56287716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8920 (or 8895 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 56287716 is about 7502.5139786608. The cubic root of 56287716 is about 383.2403329946.

The spelling of 56287716 in words is "fifty-six million, two hundred eighty-seven thousand, seven hundred sixteen".