255866902 has 8 divisors (see below), whose sum is σ = 383938776. Its totient is φ = 127887312.

The previous prime is 255866857. The next prime is 255866911. The reversal of 255866902 is 209668552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15663 + ... + 27514.

It is an arithmetic number, because the mean of its divisors is an integer number (47992347).

Almost surely, 2^255866902 is an apocalyptic number.

255866902 is a deficient number, since it is larger than the sum of its proper divisors (128071874).

255866902 is a wasteful number, since it uses less digits than its factorization.

255866902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46142.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 255866902 is about 15995.8401467382. The cubic root of 255866902 is about 634.8503600937.

The spelling of 255866902 in words is "two hundred fifty-five million, eight hundred sixty-six thousand, nine hundred two".