56540044004565 has 128 divisors (see below), whose sum is σ = 106494631524864. Its totient is φ = 25306910720000.

The previous prime is 56540044004491. The next prime is 56540044004573.

It is a happy number.

56540044004565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56540044004565 - 2⁸ = 56540044004309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 550157785 + ... + 550260545.

It is an arithmetic number, because the mean of its divisors is an integer number (831989308788).

Almost surely, 2^{56540044004565} is an apocalyptic number.

56540044004565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56540044004565 is a deficient number, since it is larger than the sum of its proper divisors (49954587520299).

56540044004565 is a wasteful number, since it uses less digits than its factorization.

56540044004565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106551.

The product of its (nonzero) digits is 5760000, while the sum is 48.

It can be divided in two parts, 5654004 and 4004565, that added together give a palindrome (9658569).

The spelling of 56540044004565 in words is "fifty-six trillion, five hundred forty billion, forty-four million, four thousand, five hundred sixty-five".