1255922969 has 8 divisors (see below), whose sum is σ = 1464633600. Its totient is φ = 1076505108.

The previous prime is 1255922953. The next prime is 1255923013. The reversal of 1255922969 is 9692295521.

It is not a de Polignac number, because 1255922969 - 2⁴ = 1255922953 is a prime.

It is a super-2 number, since 2×1255922969² = 3154685008123549922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255922069) 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, 1830449 + ... + 1831134.

It is an arithmetic number, because the mean of its divisors is an integer number (183079200).

Almost surely, 2^1255922969 is an apocalyptic number.

It is an amenable number.

1255922969 is a deficient number, since it is larger than the sum of its proper divisors (208710631).

1255922969 is an frugal number, since it uses more digits than its factorization.

1255922969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661604 (or 3661590 counting only the distinct ones).

The product of its digits is 874800, while the sum is 50.

The square root of 1255922969 is about 35439.0034989699. The cubic root of 1255922969 is about 1078.9160847300.

The spelling of 1255922969 in words is "one billion, two hundred fifty-five million, nine hundred twenty-two thousand, nine hundred sixty-nine".