1265327255 has 12 divisors (see below), whose sum is σ = 1612965720. Its totient is φ = 952715904.

The previous prime is 1265327251. The next prime is 1265327269. The reversal of 1265327255 is 5527235621.

It is not a de Polignac number, because 1265327255 - 2² = 1265327251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265327251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436385 + ... + 439274.

It is an arithmetic number, because the mean of its divisors is an integer number (134413810).

Almost surely, 2^1265327255 is an apocalyptic number.

1265327255 is a deficient number, since it is larger than the sum of its proper divisors (347638465).

1265327255 is an equidigital number, since it uses as much as digits as its factorization.

1265327255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875698 (or 875681 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 1265327255 is about 35571.4387535843. The cubic root of 1265327255 is about 1081.6023468610.

The spelling of 1265327255 in words is "one billion, two hundred sixty-five million, three hundred twenty-seven thousand, two hundred fifty-five".