255915073 has 2 divisors, whose sum is σ = 255915074. Its totient is φ = 255915072.

The previous prime is 255915067. The next prime is 255915083. The reversal of 255915073 is 370519552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153338689 + 102576384 = 12383^2 + 10128^2 .

It is a cyclic number.

It is not a de Polignac number, because 255915073 - 2²⁵ = 222360641 is a prime.

It is not a weakly prime, because it can be changed into another prime (255915083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127957536 + 127957537.

It is an arithmetic number, because the mean of its divisors is an integer number (127957537).

Almost surely, 2^255915073 is an apocalyptic number.

It is an amenable number.

255915073 is a deficient number, since it is larger than the sum of its proper divisors (1).

255915073 is an equidigital number, since it uses as much as digits as its factorization.

255915073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 255915073 is about 15997.3458111025. The cubic root of 255915073 is about 634.8901978082.

The spelling of 255915073 in words is "two hundred fifty-five million, nine hundred fifteen thousand, seventy-three".