655605056 has 28 divisors (see below), whose sum is σ = 1306726368. Its totient is φ = 326351232.

The previous prime is 655605031. The next prime is 655605079. The reversal of 655605056 is 650506556.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8036 + ... + 37091.

Almost surely, 2^655605056 is an apocalyptic number.

It is an amenable number.

655605056 is a deficient number, since it is larger than the sum of its proper divisors (651121312).

655605056 is a wasteful number, since it uses less digits than its factorization.

655605056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45366 (or 45356 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 655605056 is about 25604.7858026581. The cubic root of 655605056 is about 868.7218894964.

The spelling of 655605056 in words is "six hundred fifty-five million, six hundred five thousand, fifty-six".