56503520 has 24 divisors (see below), whose sum is σ = 133489944. Its totient is φ = 22601344.

The previous prime is 56503501. The next prime is 56503537. The reversal of 56503520 is 2530565.

56503520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56503520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176414 + ... + 176733.

It is an arithmetic number, because the mean of its divisors is an integer number (5562081).

Almost surely, 2^56503520 is an apocalyptic number.

It is an amenable number.

56503520 is an abundant number, since it is smaller than the sum of its proper divisors (76986424).

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

56503520 is a wasteful number, since it uses less digits than its factorization.

56503520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353162 (or 353154 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 56503520 is about 7516.8823324567. The cubic root of 56503520 is about 383.7294825050.

The spelling of 56503520 in words is "fifty-six million, five hundred three thousand, five hundred twenty".