655440504 has 32 divisors (see below), whose sum is σ = 1640632320. Its totient is φ = 218209376.

The previous prime is 655440503. The next prime is 655440509. The reversal of 655440504 is 405044556.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655440503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3337 + ... + 36359.

It is an arithmetic number, because the mean of its divisors is an integer number (51269760).

Almost surely, 2^655440504 is an apocalyptic number.

It is an amenable number.

655440504 is an abundant number, since it is smaller than the sum of its proper divisors (985191816).

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

655440504 is a wasteful number, since it uses less digits than its factorization.

655440504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33859 (or 33855 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 655440504 is about 25601.5722954665. The cubic root of 655440504 is about 868.6492025006.

The spelling of 655440504 in words is "six hundred fifty-five million, four hundred forty thousand, five hundred four".