655516500 has 48 divisors (see below), whose sum is σ = 1908868416. Its totient is φ = 174804000.

The previous prime is 655516489. The next prime is 655516513. The reversal of 655516500 is 5615556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217006 + ... + 220005.

It is an arithmetic number, because the mean of its divisors is an integer number (39768092).

Almost surely, 2^655516500 is an apocalyptic number.

655516500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655516500 is an abundant number, since it is smaller than the sum of its proper divisors (1253351916).

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

655516500 is a wasteful number, since it uses less digits than its factorization.

655516500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437033 (or 437021 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 655516500 is about 25603.0564581653. The cubic root of 655516500 is about 868.6827734671.

The spelling of 655516500 in words is "six hundred fifty-five million, five hundred sixteen thousand, five hundred".