56499520 has 112 divisors (see below), whose sum is σ = 167810688. Its totient is φ = 17602560.

The previous prime is 56499479. The next prime is 56499529. The reversal of 56499520 is 2599465.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56499529) 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, 23494 + ... + 25786.

Almost surely, 2^56499520 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 56499520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83905344).

56499520 is an abundant number, since it is smaller than the sum of its proper divisors (111311168).

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

56499520 is a wasteful number, since it uses less digits than its factorization.

56499520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 56499520 is about 7516.6162599936. The cubic root of 56499520 is about 383.7204272924.

The spelling of 56499520 in words is "fifty-six million, four hundred ninety-nine thousand, five hundred twenty".