255631113 has 16 divisors (see below), whose sum is σ = 388949760. Its totient is φ = 165814128.

The previous prime is 255631109. The next prime is 255631127. The reversal of 255631113 is 311136552.

255631113 is a `hidden beast` number, since 25 + 5 + 631 + 1 + 1 + 3 = 666.

It is not a de Polignac number, because 255631113 - 2² = 255631109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (255631163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126945 + ... + 128942.

It is an arithmetic number, because the mean of its divisors is an integer number (24309360).

Almost surely, 2^255631113 is an apocalyptic number.

It is an amenable number.

255631113 is a deficient number, since it is larger than the sum of its proper divisors (133318647).

255631113 is a wasteful number, since it uses less digits than its factorization.

255631113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255933 (or 255927 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 255631113 is about 15988.4681254960. The cubic root of 255631113 is about 634.6552889644.

Adding to 255631113 its reverse (311136552), we get a palindrome (566767665).

The spelling of 255631113 in words is "two hundred fifty-five million, six hundred thirty-one thousand, one hundred thirteen".