655617004 has 12 divisors (see below), whose sum is σ = 1311234064. Its totient is φ = 280978704.

The previous prime is 655616993. The next prime is 655617013. The reversal of 655617004 is 400716556.

It is a happy number.

655617004 is an admirable 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, 11707419 + ... + 11707474.

Almost surely, 2^655617004 is an apocalyptic number.

It is an amenable number.

655617004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

655617004 is a wasteful number, since it uses less digits than its factorization.

655617004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23414904 (or 23414902 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 655617004 is about 25605.0191173528. The cubic root of 655617004 is about 868.7271667722.

The spelling of 655617004 in words is "six hundred fifty-five million, six hundred seventeen thousand, four".