255522131 has 4 divisors (see below), whose sum is σ = 255555000. Its totient is φ = 255489264.

The previous prime is 255522073. The next prime is 255522133. The reversal of 255522131 is 131225552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 255522131 - 2¹⁰ = 255521107 is a prime.

It is a super-2 number, since 2×255522131² = 130583118861562322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255522131.

It is not an unprimeable number, because it can be changed into a prime (255522133) 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, 2495 + ... + 22743.

It is an arithmetic number, because the mean of its divisors is an integer number (63888750).

Almost surely, 2^255522131 is an apocalyptic number.

255522131 is a deficient number, since it is larger than the sum of its proper divisors (32869).

255522131 is a wasteful number, since it uses less digits than its factorization.

255522131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32868.

The product of its digits is 3000, while the sum is 26.

The square root of 255522131 is about 15985.0596182811. The cubic root of 255522131 is about 634.5650862849.

Adding to 255522131 its reverse (131225552), we get a palindrome (386747683).

The spelling of 255522131 in words is "two hundred fifty-five million, five hundred twenty-two thousand, one hundred thirty-one".