56279520 has 432 divisors, whose sum is σ = 235282320. Its totient is φ = 12165120.

The previous prime is 56279491. The next prime is 56279527. The reversal of 56279520 is 2597265.

56279520 is a `hidden beast` number, since 5 + 62 + 79 + 520 = 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 (56279527) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2962071 + ... + 2962089.

It is an arithmetic number, because the mean of its divisors is an integer number (544635).

Almost surely, 2^56279520 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 56279520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117641160).

56279520 is an abundant number, since it is smaller than the sum of its proper divisors (179002800).

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

56279520 is a wasteful number, since it uses less digits than its factorization.

56279520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 57 counting only the distinct ones).

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

The square root of 56279520 is about 7501.9677418661. The cubic root of 56279520 is about 383.2217310067.

The spelling of 56279520 in words is "fifty-six million, two hundred seventy-nine thousand, five hundred twenty".