2553040656 has 30 divisors (see below), whose sum is σ = 7144968350. Its totient is φ = 851013504.

The previous prime is 2553040639. The next prime is 2553040667. The reversal of 2553040656 is 6560403552.

It is a happy number.

2553040656 is a `hidden beast` number, since 2 + 553 + 0 + 40 + 65 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2516025600 + 37015056 = 50160^2 + 6084^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2553040656.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8864581 + ... + 8864868.

Almost surely, 2^2553040656 is an apocalyptic number.

It is an amenable number.

2553040656 is an abundant number, since it is smaller than the sum of its proper divisors (4591927694).

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

2553040656 is a wasteful number, since it uses less digits than its factorization.

2553040656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17729463 (or 17729454 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 2553040656 is about 50527.6227028345. The cubic root of 2553040656 is about 1366.7400166330.

The spelling of 2553040656 in words is "two billion, five hundred fifty-three million, forty thousand, six hundred fifty-six".