255540902 has 8 divisors (see below), whose sum is σ = 399977136. Its totient is φ = 122215192.

The previous prime is 255540877. The next prime is 255540911. The reversal of 255540902 is 209045552.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777573 + ... + 2777664.

It is an arithmetic number, because the mean of its divisors is an integer number (49997142).

Almost surely, 2^255540902 is an apocalyptic number.

255540902 is a deficient number, since it is larger than the sum of its proper divisors (144436234).

255540902 is a wasteful number, since it uses less digits than its factorization.

255540902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555262.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 255540902 is about 15985.6467495063. The cubic root of 255540902 is about 634.5806245731.

The spelling of 255540902 in words is "two hundred fifty-five million, five hundred forty thousand, nine hundred two".