1255705904 has 20 divisors (see below), whose sum is σ = 2434539120. Its totient is φ = 627437760.

The previous prime is 1255705897. The next prime is 1255705937. The reversal of 1255705904 is 4095075521.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 50114.

It is an arithmetic number, because the mean of its divisors is an integer number (121726956).

Almost surely, 2^1255705904 is an apocalyptic number.

It is an amenable number.

1255705904 is a deficient number, since it is larger than the sum of its proper divisors (1178833216).

1255705904 is a wasteful number, since it uses less digits than its factorization.

1255705904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51908 (or 51902 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 1255705904 is about 35435.9408510625. The cubic root of 1255705904 is about 1078.8539236954.

The spelling of 1255705904 in words is "one billion, two hundred fifty-five million, seven hundred five thousand, nine hundred four".