56713013 has 4 divisors (see below), whose sum is σ = 64814880. Its totient is φ = 48611148.

The previous prime is 56712991. The next prime is 56713049. The reversal of 56713013 is 31031765.

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 56713013 - 2¹² = 56708917 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 (56713313) 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, 4050923 + ... + 4050936.

It is an arithmetic number, because the mean of its divisors is an integer number (16203720).

Almost surely, 2^56713013 is an apocalyptic number.

It is an amenable number.

56713013 is a deficient number, since it is larger than the sum of its proper divisors (8101867).

56713013 is an equidigital number, since it uses as much as digits as its factorization.

56713013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8101866.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 56713013 is about 7530.8042731172. The cubic root of 56713013 is about 384.2031373305.

Adding to 56713013 its reverse (31031765), we get a palindrome (87744778).

The spelling of 56713013 in words is "fifty-six million, seven hundred thirteen thousand, thirteen".