56452635720 has 160 divisors (see below), whose sum is σ = 204339393720. Its totient is φ = 13896023040.

The previous prime is 56452635713. The next prime is 56452635727. The reversal of 56452635720 is 2753625465.

56452635720 is a `hidden beast` number, since 5 + 6 + 4 + 5 + 2 + 635 + 7 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (56452635713) and next prime (56452635727).

It can be written as a sum of positive squares in 4 ways, for example, as 29308755204 + 27143880516 = 171198^2 + 164754^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (56452635727) 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 39 ways as a sum of consecutive naturals, for example, 628021 + ... + 712260.

Almost surely, 2^56452635720 is an apocalyptic number.

It is an amenable number.

56452635720 is an abundant number, since it is smaller than the sum of its proper divisors (147886758000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56452635720 is a wasteful number, since it uses less digits than its factorization.

56452635720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340317 (or 1340304 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 56452635720 in words is "fifty-six billion, four hundred fifty-two million, six hundred thirty-five thousand, seven hundred twenty".