56537712 has 120 divisors (see below), whose sum is σ = 197308800. Its totient is φ = 14682240.

The previous prime is 56537681. The next prime is 56537713. The reversal of 56537712 is 21773565.

56537712 is a `hidden beast` number, since 56 + 537 + 71 + 2 = 666.

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 (56537713) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8539 + ... + 13637.

It is an arithmetic number, because the mean of its divisors is an integer number (1644240).

Almost surely, 2^56537712 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 56537712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98654400).

56537712 is an abundant number, since it is smaller than the sum of its proper divisors (140771088).

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

56537712 is a wasteful number, since it uses less digits than its factorization.

56537712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131 (or 5122 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 56537712 is about 7519.1563356536. The cubic root of 56537712 is about 383.8068690278.

The spelling of 56537712 in words is "fifty-six million, five hundred thirty-seven thousand, seven hundred twelve".