255105031 has 4 divisors (see below), whose sum is σ = 255840552. Its totient is φ = 254369512.

The previous prime is 255105023. The next prime is 255105073. The reversal of 255105031 is 130501552.

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 255105031 - 2³ = 255105023 is a prime.

It is a super-2 number, since 2×255105031² = 130157153683021922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255104993 and 255105011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255105131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367240 + ... + 367933.

It is an arithmetic number, because the mean of its divisors is an integer number (63960138).

Almost surely, 2^255105031 is an apocalyptic number.

255105031 is a deficient number, since it is larger than the sum of its proper divisors (735521).

255105031 is an equidigital number, since it uses as much as digits as its factorization.

255105031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735520.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 255105031 is about 15972.0077322796. The cubic root of 255105031 is about 634.2196220885.

Adding to 255105031 its reverse (130501552), we get a palindrome (385606583).

The spelling of 255105031 in words is "two hundred fifty-five million, one hundred five thousand, thirty-one".