56816552453 has 4 divisors (see below), whose sum is σ = 56839830828. Its totient is φ = 56793274080.

The previous prime is 56816552417. The next prime is 56816552467. The reversal of 56816552453 is 35425561865.

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 8496599329 + 48319953124 = 92177^2 + 219818^2 .

It is a cyclic number.

It is not a de Polignac number, because 56816552453 - 2⁸ = 56816552197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56816552413) 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, 11635526 + ... + 11640407.

It is an arithmetic number, because the mean of its divisors is an integer number (14209957707).

Almost surely, 2^56816552453 is an apocalyptic number.

It is an amenable number.

56816552453 is a deficient number, since it is larger than the sum of its proper divisors (23278375).

56816552453 is a wasteful number, since it uses less digits than its factorization.

56816552453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23278374.

The product of its digits is 4320000, while the sum is 50.

The spelling of 56816552453 in words is "fifty-six billion, eight hundred sixteen million, five hundred fifty-two thousand, four hundred fifty-three".