1255877931 has 32 divisors (see below), whose sum is σ = 2114150400. Its totient is φ = 644136480.

The previous prime is 1255877899. The next prime is 1255877971. The reversal of 1255877931 is 1397785521.

It is not a de Polignac number, because 1255877931 - 2⁵ = 1255877899 is a prime.

It is a super-2 number, since 2×1255877931² = 3154458755145681522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1255877971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16161 + ... + 52658.

It is an arithmetic number, because the mean of its divisors is an integer number (66067200).

Almost surely, 2^1255877931 is an apocalyptic number.

1255877931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1255877931 is a deficient number, since it is larger than the sum of its proper divisors (858272469).

1255877931 is a wasteful number, since it uses less digits than its factorization.

1255877931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68919.

The product of its digits is 529200, while the sum is 48.

The square root of 1255877931 is about 35438.3680634422. The cubic root of 1255877931 is about 1078.9031877597.

The spelling of 1255877931 in words is "one billion, two hundred fifty-five million, eight hundred seventy-seven thousand, nine hundred thirty-one".