255638335 has 16 divisors (see below), whose sum is σ = 321704640. Its totient is φ = 194745600.

The previous prime is 255638309. The next prime is 255638351. The reversal of 255638335 is 533836552.

It is not a de Polignac number, because 255638335 - 2⁵ = 255638303 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491 + ... + 22660.

It is an arithmetic number, because the mean of its divisors is an integer number (20106540).

Almost surely, 2^255638335 is an apocalyptic number.

255638335 is a deficient number, since it is larger than the sum of its proper divisors (66066305).

255638335 is a wasteful number, since it uses less digits than its factorization.

255638335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24258.

The product of its digits is 324000, while the sum is 40.

The square root of 255638335 is about 15988.6939741806. The cubic root of 255638335 is about 634.6612655939.

The spelling of 255638335 in words is "two hundred fifty-five million, six hundred thirty-eight thousand, three hundred thirty-five".