56520012 has 24 divisors (see below), whose sum is σ = 133471296. Its totient is φ = 18612688.

The previous prime is 56519989. The next prime is 56520029. The reversal of 56520012 is 21002565.

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, 27378 + ... + 29369.

It is an arithmetic number, because the mean of its divisors is an integer number (5561304).

Almost surely, 2^56520012 is an apocalyptic number.

It is an amenable number.

56520012 is an abundant number, since it is smaller than the sum of its proper divisors (76951284).

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

56520012 is a wasteful number, since it uses less digits than its factorization.

56520012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56837 (or 56835 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 56520012 is about 7517.9792497718. The cubic root of 56520012 is about 383.7668126337.

Adding to 56520012 its reverse (21002565), we get a palindrome (77522577).

The spelling of 56520012 in words is "fifty-six million, five hundred twenty thousand, twelve".