56424111637 has 4 divisors (see below), whose sum is σ = 56802797100. Its totient is φ = 56045426176.

The previous prime is 56424111617. The next prime is 56424111641. The reversal of 56424111637 is 73611142465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7321540356 + 49102571281 = 85566^2 + 221591^2 .

It is a cyclic number.

It is not a de Polignac number, because 56424111637 - 2¹⁵ = 56424078869 is a prime.

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 56424111637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56424111617) 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 3 ways as a sum of consecutive naturals, for example, 189342508 + ... + 189342805.

It is an arithmetic number, because the mean of its divisors is an integer number (14200699275).

Almost surely, 2^56424111637 is an apocalyptic number.

It is an amenable number.

56424111637 is a deficient number, since it is larger than the sum of its proper divisors (378685463).

56424111637 is a wasteful number, since it uses less digits than its factorization.

56424111637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378685462.

The product of its digits is 120960, while the sum is 40.

The spelling of 56424111637 in words is "fifty-six billion, four hundred twenty-four million, one hundred eleven thousand, six hundred thirty-seven".