255523163031 has 10 divisors (see below), whose sum is σ = 381707441192. Its totient is φ = 170348775300.

The previous prime is 255523163009. The next prime is 255523163047. The reversal of 255523163031 is 130361325552.

It is not a de Polignac number, because 255523163031 - 2¹⁰ = 255523162007 is a prime.

It is a super-2 number, since 2×255523163031² (a number of 24 digits) 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 (255523263031) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1577303395 + ... + 1577303556.

Almost surely, 2^255523163031 is an apocalyptic number.

255523163031 is a deficient number, since it is larger than the sum of its proper divisors (126184278161).

255523163031 is an equidigital number, since it uses as much as digits as its factorization.

255523163031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154606963 (or 3154606954 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 255523163031 its reverse (130361325552), we get a palindrome (385884488583).

The spelling of 255523163031 in words is "two hundred fifty-five billion, five hundred twenty-three million, one hundred sixty-three thousand, thirty-one".