654955056 has 240 divisors, whose sum is σ = 2280193344. Its totient is φ = 171196416.

The previous prime is 654955043. The next prime is 654955069. The reversal of 654955056 is 650559456.

654955056 is a `hidden beast` number, since 6 + 5 + 49 + 550 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (654955043) and next prime (654955069).

It is a super-2 number, since 2×654955056² = 857932250759926272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 633516 + ... + 634548.

Almost surely, 2^654955056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654955056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140096672).

654955056 is an abundant number, since it is smaller than the sum of its proper divisors (1625238288).

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

654955056 is a wasteful number, since it uses less digits than its factorization.

654955056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 654955056 is about 25592.0897153789. The cubic root of 654955056 is about 868.4346962949.

The spelling of 654955056 in words is "six hundred fifty-four million, nine hundred fifty-five thousand, fifty-six".