56530403408 has 40 divisors (see below), whose sum is σ = 111900416040. Its totient is φ = 27659427840.

The previous prime is 56530403393. The next prime is 56530403443. The reversal of 56530403408 is 80430403565.

It can be written as a sum of positive squares in 4 ways, for example, as 3957416464 + 52572986944 = 62908^2 + 229288^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66503 + ... + 342758.

It is an arithmetic number, because the mean of its divisors is an integer number (2797510401).

Almost surely, 2^56530403408 is an apocalyptic number.

It is an amenable number.

56530403408 is a deficient number, since it is larger than the sum of its proper divisors (55370012632).

56530403408 is a wasteful number, since it uses less digits than its factorization.

56530403408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409455 (or 409449 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 56530403408 in words is "fifty-six billion, five hundred thirty million, four hundred three thousand, four hundred eight".