56545366413 has 16 divisors (see below), whose sum is σ = 76153980096. Its totient is φ = 37316966400.

The previous prime is 56545366399. The next prime is 56545366421. The reversal of 56545366413 is 31466354565.

It is a de Polignac number, because none of the positive numbers 2^k-56545366413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56545366433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120781 + ... + 2147277.

It is an arithmetic number, because the mean of its divisors is an integer number (4759623756).

Almost surely, 2^56545366413 is an apocalyptic number.

It is an amenable number.

56545366413 is a deficient number, since it is larger than the sum of its proper divisors (19608613683).

56545366413 is a wasteful number, since it uses less digits than its factorization.

56545366413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33644.

The product of its digits is 3888000, while the sum is 48.

The spelling of 56545366413 in words is "fifty-six billion, five hundred forty-five million, three hundred sixty-six thousand, four hundred thirteen".