56342520 has 128 divisors (see below), whose sum is σ = 202305600. Its totient is φ = 13865472.

The previous prime is 56342509. The next prime is 56342521. The reversal of 56342520 is 2524365.

56342520 is a `hidden beast` number, since 5 + 634 + 2 + 5 + 20 = 666.

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 (56342521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12034 + ... + 16046.

Almost surely, 2^56342520 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 56342520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101152800).

56342520 is an abundant number, since it is smaller than the sum of its proper divisors (145963080).

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

56342520 is a wasteful number, since it uses less digits than its factorization.

56342520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046 (or 4036 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 56342520 is about 7506.1654658021. The cubic root of 56342520 is about 383.3646720861.

Adding to 56342520 its reverse (2524365), we get a palindrome (58866885).

The spelling of 56342520 in words is "fifty-six million, three hundred forty-two thousand, five hundred twenty".