56100013 has 12 divisors (see below), whose sum is σ = 60043104. Its totient is φ = 52316000.

The previous prime is 56099977. The next prime is 56100041. The reversal of 56100013 is 31000165.

It is not a de Polignac number, because 56100013 - 2²⁵ = 22545581 is a prime.

It is a super-2 number, since 2×56100013² = 6294422917200338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56100073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37938 + ... + 39388.

It is an arithmetic number, because the mean of its divisors is an integer number (5003592).

Almost surely, 2^56100013 is an apocalyptic number.

It is an amenable number.

56100013 is a deficient number, since it is larger than the sum of its proper divisors (3943091).

56100013 is a wasteful number, since it uses less digits than its factorization.

56100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 56100013 is about 7489.9941922541. The cubic root of 56100013 is about 382.8138606077.

Adding to 56100013 its reverse (31000165), we get a palindrome (87100178).

The spelling of 56100013 in words is "fifty-six million, one hundred thousand, thirteen".