255906535 has 16 divisors (see below), whose sum is σ = 325733760. Its totient is φ = 192460320.

The previous prime is 255906509. The next prime is 255906551. The reversal of 255906535 is 535609552.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-255906535 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, 2164 + ... + 22726.

It is an arithmetic number, because the mean of its divisors is an integer number (20358360).

Almost surely, 2^255906535 is an apocalyptic number.

255906535 is a deficient number, since it is larger than the sum of its proper divisors (69827225).

255906535 is a wasteful number, since it uses less digits than its factorization.

255906535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20718.

The product of its (nonzero) digits is 202500, while the sum is 40.

The square root of 255906535 is about 15997.0789521087. The cubic root of 255906535 is about 634.8831371940.

The spelling of 255906535 in words is "two hundred fifty-five million, nine hundred six thousand, five hundred thirty-five".