255319951 has 2 divisors, whose sum is σ = 255319952. Its totient is φ = 255319950.

The previous prime is 255319931. The next prime is 255320003. The reversal of 255319951 is 159913552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255319951 - 2⁵ = 255319919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255319901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127659975 + 127659976.

It is an arithmetic number, because the mean of its divisors is an integer number (127659976).

Almost surely, 2^255319951 is an apocalyptic number.

255319951 is a deficient number, since it is larger than the sum of its proper divisors (1).

255319951 is an equidigital number, since it uses as much as digits as its factorization.

255319951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60750, while the sum is 40.

The square root of 255319951 is about 15978.7343366113. The cubic root of 255319951 is about 634.3976771432.

The spelling of 255319951 in words is "two hundred fifty-five million, three hundred nineteen thousand, nine hundred fifty-one".