1255267679 has 2 divisors, whose sum is σ = 1255267680. Its totient is φ = 1255267678.

The previous prime is 1255267627. The next prime is 1255267687. The reversal of 1255267679 is 9767625521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255267679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255267609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627633839 + 627633840.

It is an arithmetic number, because the mean of its divisors is an integer number (627633840).

Almost surely, 2^1255267679 is an apocalyptic number.

1255267679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255267679 is an equidigital number, since it uses as much as digits as its factorization.

1255267679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 50.

The square root of 1255267679 is about 35429.7569706596. The cubic root of 1255267679 is about 1078.7284071053.

The spelling of 1255267679 in words is "one billion, two hundred fifty-five million, two hundred sixty-seven thousand, six hundred seventy-nine".