656256455 has 8 divisors (see below), whose sum is σ = 806715504. Its totient is φ = 512200000.

The previous prime is 656256443. The next prime is 656256467. The reversal of 656256455 is 554652656.

It is an interprime number because it is at equal distance from previous prime (656256443) and next prime (656256467).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 656256455 - 2⁸ = 656256199 is a prime.

It is a Duffinian number.

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, 1600421 + ... + 1600830.

It is an arithmetic number, because the mean of its divisors is an integer number (100839438).

Almost surely, 2^656256455 is an apocalyptic number.

656256455 is a deficient number, since it is larger than the sum of its proper divisors (150459049).

656256455 is a wasteful number, since it uses less digits than its factorization.

656256455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201297.

The product of its digits is 1080000, while the sum is 44.

The square root of 656256455 is about 25617.5029032886. The cubic root of 656256455 is about 869.0095104506.

The spelling of 656256455 in words is "six hundred fifty-six million, two hundred fifty-six thousand, four hundred fifty-five".