255791377 has 2 divisors, whose sum is σ = 255791378. Its totient is φ = 255791376.

The previous prime is 255791363. The next prime is 255791381. The reversal of 255791377 is 773197552.

255791377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245831041 + 9960336 = 15679^2 + 3156^2 .

It is a cyclic number.

It is not a de Polignac number, because 255791377 - 2²³ = 247402769 is a prime.

It is a super-2 number, since 2×255791377² = 130858457095112258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255791387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127895688 + 127895689.

It is an arithmetic number, because the mean of its divisors is an integer number (127895689).

Almost surely, 2^255791377 is an apocalyptic number.

It is an amenable number.

255791377 is a deficient number, since it is larger than the sum of its proper divisors (1).

255791377 is an equidigital number, since it uses as much as digits as its factorization.

255791377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 463050, while the sum is 46.

The square root of 255791377 is about 15993.4792024750. The cubic root of 255791377 is about 634.7878903860.

The spelling of 255791377 in words is "two hundred fifty-five million, seven hundred ninety-one thousand, three hundred seventy-seven".