56115637601 has 4 divisors (see below), whose sum is σ = 56116271892. Its totient is φ = 56115003312.

The previous prime is 56115637541. The next prime is 56115637651. The reversal of 56115637601 is 10673651165.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 54580173376 + 1535464225 = 233624^2 + 39185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56115637601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56115637651) 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, 157730 + ... + 370283.

It is an arithmetic number, because the mean of its divisors is an integer number (14029067973).

Almost surely, 2^56115637601 is an apocalyptic number.

It is an amenable number.

56115637601 is a deficient number, since it is larger than the sum of its proper divisors (634291).

56115637601 is a wasteful number, since it uses less digits than its factorization.

56115637601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634290.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 56115637601 in words is "fifty-six billion, one hundred fifteen million, six hundred thirty-seven thousand, six hundred one".