255770447 has 2 divisors, whose sum is σ = 255770448. Its totient is φ = 255770446.

The previous prime is 255770413. The next prime is 255770453. The reversal of 255770447 is 744077552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255770447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255770497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127885223 + 127885224.

It is an arithmetic number, because the mean of its divisors is an integer number (127885224).

Almost surely, 2^255770447 is an apocalyptic number.

255770447 is a deficient number, since it is larger than the sum of its proper divisors (1).

255770447 is an equidigital number, since it uses as much as digits as its factorization.

255770447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 274400, while the sum is 41.

The square root of 255770447 is about 15992.8248599176. The cubic root of 255770447 is about 634.7705761811.

The spelling of 255770447 in words is "two hundred fifty-five million, seven hundred seventy thousand, four hundred forty-seven".