1255912479 has 8 divisors (see below), whose sum is σ = 1860611120. Its totient is φ = 837274968.

The previous prime is 1255912459. The next prime is 1255912487. The reversal of 1255912479 is 9742195521.

1255912479 is a `hidden beast` number, since 1 + 2 + 559 + 1 + 24 + 79 = 666.

It is not a de Polignac number, because 1255912479 - 2⁹ = 1255911967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255912429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23257612 + ... + 23257665.

It is an arithmetic number, because the mean of its divisors is an integer number (232576390).

Almost surely, 2^1255912479 is an apocalyptic number.

1255912479 is a deficient number, since it is larger than the sum of its proper divisors (604698641).

1255912479 is an equidigital number, since it uses as much as digits as its factorization.

1255912479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46515286 (or 46515280 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 1255912479 is about 35438.8554978854. The cubic root of 1255912479 is about 1078.9130808671.

The spelling of 1255912479 in words is "one billion, two hundred fifty-five million, nine hundred twelve thousand, four hundred seventy-nine".