56006520 has 64 divisors (see below), whose sum is σ = 169719840. Its totient is φ = 14784000.

The previous prime is 56006519. The next prime is 56006521. The reversal of 56006520 is 2560065.

It is an interprime number because it is at equal distance from previous prime (56006519) and next prime (56006521).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56006521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9810 + ... + 14430.

Almost surely, 2^56006520 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 56006520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84859920).

56006520 is an abundant number, since it is smaller than the sum of its proper divisors (113713320).

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

56006520 is a wasteful number, since it uses less digits than its factorization.

56006520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736 (or 4732 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 56006520 is about 7483.7503966928. The cubic root of 56006520 is about 382.6010839679.

Adding to 56006520 its reverse (2560065), we get a palindrome (58566585).

The spelling of 56006520 in words is "fifty-six million, six thousand, five hundred twenty".