56753374457 has 4 divisors (see below), whose sum is σ = 61119018660. Its totient is φ = 52387730256.

The previous prime is 56753374441. The next prime is 56753374493. The reversal of 56753374457 is 75447335765.

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 2398648576 + 54354725881 = 48976^2 + 233141^2 .

It is a cyclic number.

It is not a de Polignac number, because 56753374457 - 2⁴ = 56753374441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56753374427) 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, 2182822082 + ... + 2182822107.

It is an arithmetic number, because the mean of its divisors is an integer number (15279754665).

Almost surely, 2^56753374457 is an apocalyptic number.

It is an amenable number.

56753374457 is a deficient number, since it is larger than the sum of its proper divisors (4365644203).

56753374457 is a wasteful number, since it uses less digits than its factorization.

56753374457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365644202.

The product of its digits is 37044000, while the sum is 56.

The spelling of 56753374457 in words is "fifty-six billion, seven hundred fifty-three million, three hundred seventy-four thousand, four hundred fifty-seven".