56940682553 has 4 divisors (see below), whose sum is σ = 58015035108. Its totient is φ = 55866330000.

The previous prime is 56940682543. The next prime is 56940682597. The reversal of 56940682553 is 35528604965.

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 45425675689 + 11515006864 = 213133^2 + 107308^2 .

It is a cyclic number.

It is not a de Polignac number, because 56940682553 - 2¹⁰ = 56940681529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 1074352501 = 56940682553 / (5 + 6 + 9 + 4 + 0 + 6 + 8 + 2 + 5 + 5 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56940682495 and 56940682504.

It is not an unprimeable number, because it can be changed into a prime (56940682543) 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, 537176198 + ... + 537176303.

It is an arithmetic number, because the mean of its divisors is an integer number (14503758777).

Almost surely, 2^56940682553 is an apocalyptic number.

56940682553 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

56940682553 is a deficient number, since it is larger than the sum of its proper divisors (1074352555).

56940682553 is a wasteful number, since it uses less digits than its factorization.

56940682553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074352554.

The product of its (nonzero) digits is 7776000, while the sum is 53.

The spelling of 56940682553 in words is "fifty-six billion, nine hundred forty million, six hundred eighty-two thousand, five hundred fifty-three".