1255424331 has 16 divisors (see below), whose sum is σ = 1913677568. Its totient is φ = 717141600.

The previous prime is 1255424327. The next prime is 1255424351. The reversal of 1255424331 is 1334245521.

It is not a de Polignac number, because 1255424331 - 2² = 1255424327 is a prime.

It is a super-2 number, since 2×1255424331² = 3152180501733595122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255424351) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 66621 + ... + 83361.

It is an arithmetic number, because the mean of its divisors is an integer number (119604848).

Almost surely, 2^1255424331 is an apocalyptic number.

1255424331 is a deficient number, since it is larger than the sum of its proper divisors (658253237).

1255424331 is a wasteful number, since it uses less digits than its factorization.

1255424331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20322.

The product of its digits is 14400, while the sum is 30.

The square root of 1255424331 is about 35431.9676422295. The cubic root of 1255424331 is about 1078.7732787919.

Adding to 1255424331 its reverse (1334245521), we get a palindrome (2589669852).

The spelling of 1255424331 in words is "one billion, two hundred fifty-five million, four hundred twenty-four thousand, three hundred thirty-one".