255215996 has 12 divisors (see below), whose sum is σ = 510432048. Its totient is φ = 109378272.

The previous prime is 255215977. The next prime is 255216007. The reversal of 255215996 is 699512552.

255215996 is an admirable number.

It is a super-2 number, since 2×255215996² = 130270409228544032, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 4557401 + ... + 4557456.

It is an arithmetic number, because the mean of its divisors is an integer number (42536004).

Almost surely, 2^255215996 is an apocalyptic number.

It is an amenable number.

255215996 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.

255215996 is a wasteful number, since it uses less digits than its factorization.

255215996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114868 (or 9114866 counting only the distinct ones).

The product of its digits is 243000, while the sum is 44.

The square root of 255215996 is about 15975.4810882177. The cubic root of 255215996 is about 634.3115658897.

The spelling of 255215996 in words is "two hundred fifty-five million, two hundred fifteen thousand, nine hundred ninety-six".