255458531 has 2 divisors, whose sum is σ = 255458532. Its totient is φ = 255458530.

The previous prime is 255458527. The next prime is 255458549. The reversal of 255458531 is 135854552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255458531 - 2² = 255458527 is a prime.

It is a super-2 number, since 2×255458531² = 130518122121355922, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (255458551) 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, 127729265 + 127729266.

It is an arithmetic number, because the mean of its divisors is an integer number (127729266).

Almost surely, 2^255458531 is an apocalyptic number.

255458531 is a deficient number, since it is larger than the sum of its proper divisors (1).

255458531 is an equidigital number, since it uses as much as digits as its factorization.

255458531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120000, while the sum is 38.

The square root of 255458531 is about 15983.0701368667. The cubic root of 255458531 is about 634.5124337178.

The spelling of 255458531 in words is "two hundred fifty-five million, four hundred fifty-eight thousand, five hundred thirty-one".