56430520 has 32 divisors (see below), whose sum is σ = 131349600. Its totient is φ = 21793408.

The previous prime is 56430487. The next prime is 56430541. The reversal of 56430520 is 2503465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23164 + ... + 25483.

It is an arithmetic number, because the mean of its divisors is an integer number (4104675).

Almost surely, 2^56430520 is an apocalyptic number.

It is an amenable number.

56430520 is an abundant number, since it is smaller than the sum of its proper divisors (74919080).

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

56430520 is a wasteful number, since it uses less digits than its factorization.

56430520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48687 (or 48683 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 56430520 is about 7512.0250265824. The cubic root of 56430520 is about 383.5641575576.

Adding to 56430520 its reverse (2503465), we get a palindrome (58933985).

The spelling of 56430520 in words is "fifty-six million, four hundred thirty thousand, five hundred twenty".