56487704 has 64 divisors (see below), whose sum is σ = 134615040. Its totient is φ = 21617280.

The previous prime is 56487689. The next prime is 56487727. The reversal of 56487704 is 40778465.

56487704 = 312² + 313² + ... + 584².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21317 + ... + 23819.

It is an arithmetic number, because the mean of its divisors is an integer number (2103360).

Almost surely, 2^56487704 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 56487704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67307520).

56487704 is an abundant number, since it is smaller than the sum of its proper divisors (78127336).

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

56487704 is a wasteful number, since it uses less digits than its factorization.

56487704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 56487704 is about 7515.8302269277. The cubic root of 56487704 is about 383.6936756983.

The spelling of 56487704 in words is "fifty-six million, four hundred eighty-seven thousand, seven hundred four".