56504013 has 8 divisors (see below), whose sum is σ = 75485376. Its totient is φ = 37596000.

The previous prime is 56504009. The next prime is 56504023. The reversal of 56504013 is 31040565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56504013 - 2² = 56504009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56504023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16513 + ... + 19638.

It is an arithmetic number, because the mean of its divisors is an integer number (9435672).

Almost surely, 2^56504013 is an apocalyptic number.

It is an amenable number.

56504013 is a deficient number, since it is larger than the sum of its proper divisors (18981363).

56504013 is a wasteful number, since it uses less digits than its factorization.

56504013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36675.

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

The square root of 56504013 is about 7516.9151252359. The cubic root of 56504013 is about 383.7305985303.

Adding to 56504013 its reverse (31040565), we get a palindrome (87544578).

The spelling of 56504013 in words is "fifty-six million, five hundred four thousand, thirteen".