1255279888 has 20 divisors (see below), whose sum is σ = 2445547468. Its totient is φ = 624170880.

The previous prime is 1255279873. The next prime is 1255279889. The reversal of 1255279888 is 8889725521.

It can be written as a sum of positive squares in 2 ways, for example, as 273836304 + 981443584 = 16548^2 + 31328^2 .

It is not an unprimeable number, because it can be changed into a prime (1255279889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213831 + ... + 219622.

Almost surely, 2^1255279888 is an apocalyptic number.

It is an amenable number.

1255279888 is a deficient number, since it is larger than the sum of its proper divisors (1190267580).

1255279888 is a wasteful number, since it uses less digits than its factorization.

1255279888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433642 (or 433636 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 55.

The square root of 1255279888 is about 35429.9292689105. The cubic root of 1255279888 is about 1078.7319044078.

The spelling of 1255279888 in words is "one billion, two hundred fifty-five million, two hundred seventy-nine thousand, eight hundred eighty-eight".