1255997232 has 80 divisors (see below), whose sum is σ = 4120212480. Its totient is φ = 358855488.

The previous prime is 1255997207. The next prime is 1255997243. The reversal of 1255997232 is 2327995521.

1255997232 is a `hidden beast` number, since 1 + 2 + 559 + 97 + 2 + 3 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204648 + ... + 210695.

It is an arithmetic number, because the mean of its divisors is an integer number (51502656).

Almost surely, 2^1255997232 is an apocalyptic number.

1255997232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1255997232 is an abundant number, since it is smaller than the sum of its proper divisors (2864215248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255997232 is a wasteful number, since it uses less digits than its factorization.

1255997232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415367 (or 415355 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 1255997232 is about 35440.0512414979. The cubic root of 1255997232 is about 1078.9373498256.

It can be divided in two parts, 12559972 and 32, that multiplied together give a palindrome (401919104).

The spelling of 1255997232 in words is "one billion, two hundred fifty-five million, nine hundred ninety-seven thousand, two hundred thirty-two".