56352013 has 4 divisors (see below), whose sum is σ = 57551040. Its totient is φ = 55152988.

The previous prime is 56351989. The next prime is 56352031. The reversal of 56352013 is 31025365.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56352013 - 2⁹ = 56351501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56358013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599443 + ... + 599536.

It is an arithmetic number, because the mean of its divisors is an integer number (14387760).

Almost surely, 2^56352013 is an apocalyptic number.

It is an amenable number.

56352013 is a deficient number, since it is larger than the sum of its proper divisors (1199027).

56352013 is a wasteful number, since it uses less digits than its factorization.

56352013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199026.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 56352013 is about 7506.7977860070. The cubic root of 56352013 is about 383.3862015719.

Adding to 56352013 its reverse (31025365), we get a palindrome (87377378).

The spelling of 56352013 in words is "fifty-six million, three hundred fifty-two thousand, thirteen".