255145422231 has 64 divisors (see below), whose sum is σ = 438010675200. Its totient is φ = 143770824288.

The previous prime is 255145422223. The next prime is 255145422269. The reversal of 255145422231 is 132224541552.

255145422231 is a `hidden beast` number, since 2 + 55 + 14 + 542 + 22 + 31 = 666.

It is not a de Polignac number, because 255145422231 - 2³ = 255145422223 is a prime.

It is a super-2 number, since 2×255145422231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255145422281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12337606 + ... + 12358268.

It is an arithmetic number, because the mean of its divisors is an integer number (6843916800).

Almost surely, 2^255145422231 is an apocalyptic number.

255145422231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

255145422231 is a deficient number, since it is larger than the sum of its proper divisors (182865252969).

255145422231 is a wasteful number, since it uses less digits than its factorization.

255145422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21585 (or 21579 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 255145422231 its reverse (132224541552), we get a palindrome (387369963783).

The spelling of 255145422231 in words is "two hundred fifty-five billion, one hundred forty-five million, four hundred twenty-two thousand, two hundred thirty-one".