255125491 has 2 divisors, whose sum is σ = 255125492. Its totient is φ = 255125490.

The previous prime is 255125489. The next prime is 255125503. The reversal of 255125491 is 194521552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255125491 - 2¹ = 255125489 is a prime.

Together with 255125489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (255125891) 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, 127562745 + 127562746.

It is an arithmetic number, because the mean of its divisors is an integer number (127562746).

Almost surely, 2^255125491 is an apocalyptic number.

255125491 is a deficient number, since it is larger than the sum of its proper divisors (1).

255125491 is an equidigital number, since it uses as much as digits as its factorization.

255125491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 34.

The square root of 255125491 is about 15972.6482149955. The cubic root of 255125491 is about 634.2365769175.

The spelling of 255125491 in words is "two hundred fifty-five million, one hundred twenty-five thousand, four hundred ninety-one".