655099056 has 40 divisors (see below), whose sum is σ = 1880378160. Its totient is φ = 218366208.

The previous prime is 655099021. The next prime is 655099061. The reversal of 655099056 is 650990556.

655099056 is a `hidden beast` number, since 6 + 5 + 509 + 90 + 56 = 666.

It is a super-2 number, since 2×655099056² = 858309546344182272, which contains 22 as substring.

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, 757785 + ... + 758648.

It is an arithmetic number, because the mean of its divisors is an integer number (47009454).

Almost surely, 2^655099056 is an apocalyptic number.

It is an amenable number.

655099056 is an abundant number, since it is smaller than the sum of its proper divisors (1225279104).

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

655099056 is a wasteful number, since it uses less digits than its factorization.

655099056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516450 (or 1516438 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The square root of 655099056 is about 25594.9029300757. The cubic root of 655099056 is about 868.4983370141.

The spelling of 655099056 in words is "six hundred fifty-five million, ninety-nine thousand, fifty-six".