56213253733 has 32 divisors (see below), whose sum is σ = 69807661056. Its totient is φ = 44078309568.

The previous prime is 56213253697. The next prime is 56213253743. The reversal of 56213253733 is 33735231265.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56213253733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56213253743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4600410 + ... + 4612612.

It is an arithmetic number, because the mean of its divisors is an integer number (2181489408).

Almost surely, 2^56213253733 is an apocalyptic number.

It is an amenable number.

56213253733 is a deficient number, since it is larger than the sum of its proper divisors (13594407323).

56213253733 is a wasteful number, since it uses less digits than its factorization.

56213253733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12673.

The product of its digits is 340200, while the sum is 40.

Adding to 56213253733 its reverse (33735231265), we get a palindrome (89948484998).

The spelling of 56213253733 in words is "fifty-six billion, two hundred thirteen million, two hundred fifty-three thousand, seven hundred thirty-three".