255191467 has 2 divisors, whose sum is σ = 255191468. Its totient is φ = 255191466.

The previous prime is 255191441. The next prime is 255191477. The reversal of 255191467 is 764191552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255191467 - 2¹¹ = 255189419 is a prime.

It is a super-2 number, since 2×255191467² = 130245369659224178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255191477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127595733 + 127595734.

It is an arithmetic number, because the mean of its divisors is an integer number (127595734).

Almost surely, 2^255191467 is an apocalyptic number.

255191467 is a deficient number, since it is larger than the sum of its proper divisors (1).

255191467 is an equidigital number, since it uses as much as digits as its factorization.

255191467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 255191467 is about 15974.7133620607. The cubic root of 255191467 is about 634.2912438525.

The spelling of 255191467 in words is "two hundred fifty-five million, one hundred ninety-one thousand, four hundred sixty-seven".