255365311 has 4 divisors (see below), whose sum is σ = 257056624. Its totient is φ = 253674000.

The previous prime is 255365303. The next prime is 255365317. The reversal of 255365311 is 113563552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255365311 - 2³ = 255365303 is a prime.

It is a super-2 number, since 2×255365311² = 130422884124253442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255365317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845430 + ... + 845731.

It is an arithmetic number, because the mean of its divisors is an integer number (64264156).

Almost surely, 2^255365311 is an apocalyptic number.

255365311 is a deficient number, since it is larger than the sum of its proper divisors (1691313).

255365311 is a wasteful number, since it uses less digits than its factorization.

255365311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691312.

The product of its digits is 13500, while the sum is 31.

The square root of 255365311 is about 15980.1536600873. The cubic root of 255365311 is about 634.4352438310.

The spelling of 255365311 in words is "two hundred fifty-five million, three hundred sixty-five thousand, three hundred eleven".