255100031 has 2 divisors, whose sum is σ = 255100032. Its totient is φ = 255100030.

The previous prime is 255100007. The next prime is 255100063. The reversal of 255100031 is 130001552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255100031 - 2⁶ = 255099967 is a prime.

It is a super-2 number, since 2×255100031² = 130152051632401922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 255099982 and 255100009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255100081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127550015 + 127550016.

It is an arithmetic number, because the mean of its divisors is an integer number (127550016).

Almost surely, 2^255100031 is an apocalyptic number.

255100031 is a deficient number, since it is larger than the sum of its proper divisors (1).

255100031 is an equidigital number, since it uses as much as digits as its factorization.

255100031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 255100031 is about 15971.8512076716. The cubic root of 255100031 is about 634.2154785418.

Adding to 255100031 its reverse (130001552), we get a palindrome (385101583).

The spelling of 255100031 in words is "two hundred fifty-five million, one hundred thousand, thirty-one".