255250031 has 2 divisors, whose sum is σ = 255250032. Its totient is φ = 255250030.

The previous prime is 255250007. The next prime is 255250069. The reversal of 255250031 is 130052552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255250031 is a prime.

It is a super-2 number, since 2×255250031² = 130305156651001922, 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 = 255249979 and 255250006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255250081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127625015 + 127625016.

It is an arithmetic number, because the mean of its divisors is an integer number (127625016).

Almost surely, 2^255250031 is an apocalyptic number.

255250031 is a deficient number, since it is larger than the sum of its proper divisors (1).

255250031 is an equidigital number, since it uses as much as digits as its factorization.

255250031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 255250031 is about 15976.5462788426. The cubic root of 255250031 is about 634.3397613985.

The spelling of 255250031 in words is "two hundred fifty-five million, two hundred fifty thousand, thirty-one".