56612520 has 160 divisors (see below), whose sum is σ = 193275720. Its totient is φ = 14860800.

The previous prime is 56612519. The next prime is 56612527. The reversal of 56612520 is 2521665.

It can be written as a sum of positive squares in 4 ways, for example, as 56340036 + 272484 = 7506^2 + 522^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56612527) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 327154 + ... + 327326.

Almost surely, 2^56612520 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 56612520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96637860).

56612520 is an abundant number, since it is smaller than the sum of its proper divisors (136663200).

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

56612520 is a wasteful number, since it uses less digits than its factorization.

56612520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 56612520 is about 7524.1291854938. The cubic root of 56612520 is about 383.9760727279.

The spelling of 56612520 in words is "fifty-six million, six hundred twelve thousand, five hundred twenty".