655974456 has 32 divisors (see below), whose sum is σ = 1640736000. Its totient is φ = 218551520.

The previous prime is 655974439. The next prime is 655974469. The reversal of 655974456 is 654479556.

It is a junction number, because it is equal to n+sod(n) for n = 655974399 and 655974408.

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, 55345 + ... + 66143.

It is an arithmetic number, because the mean of its divisors is an integer number (51273000).

Almost surely, 2^655974456 is an apocalyptic number.

It is an amenable number.

655974456 is an abundant number, since it is smaller than the sum of its proper divisors (984761544).

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

655974456 is a wasteful number, since it uses less digits than its factorization.

655974456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339 (or 13335 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 51.

The square root of 655974456 is about 25611.9982820552. The cubic root of 655974456 is about 868.8850190160.

The spelling of 655974456 in words is "six hundred fifty-five million, nine hundred seventy-four thousand, four hundred fifty-six".