255947902 has 16 divisors (see below), whose sum is σ = 439695360. Its totient is φ = 109460088.

The previous prime is 255947863. The next prime is 255947927. The reversal of 255947902 is 209749552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12378 + ... + 25789.

It is an arithmetic number, because the mean of its divisors is an integer number (27480960).

Almost surely, 2^255947902 is an apocalyptic number.

255947902 is a deficient number, since it is larger than the sum of its proper divisors (183747458).

255947902 is a wasteful number, since it uses less digits than its factorization.

255947902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38655.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 255947902 is about 15998.3718546607. The cubic root of 255947902 is about 634.9173447296.

The spelling of 255947902 in words is "two hundred fifty-five million, nine hundred forty-seven thousand, nine hundred two".