56306520 has 96 divisors (see below), whose sum is σ = 184064400. Its totient is φ = 14927616.

The previous prime is 56306501. The next prime is 56306521. The reversal of 56306520 is 2560365.

56306520 is a `hidden beast` number, since 5 + 6 + 3 + 0 + 652 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56306521) 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, 82099 + ... + 82781.

Almost surely, 2^56306520 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 56306520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92032200).

56306520 is an abundant number, since it is smaller than the sum of its proper divisors (127757880).

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

56306520 is a wasteful number, since it uses less digits than its factorization.

56306520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 56306520 is about 7503.7670539536. The cubic root of 56306520 is about 383.2830045246.

Adding to 56306520 its reverse (2560365), we get a palindrome (58866885).

The spelling of 56306520 in words is "fifty-six million, three hundred six thousand, five hundred twenty".