1255913013 has 16 divisors (see below), whose sum is σ = 1729898496. Its totient is φ = 809643120.

The previous prime is 1255913011. The next prime is 1255913023. The reversal of 1255913013 is 3103195521.

It is not a de Polignac number, because 1255913013 - 2¹ = 1255913011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255913011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137206 + ... + 146072.

It is an arithmetic number, because the mean of its divisors is an integer number (108118656).

Almost surely, 2^1255913013 is an apocalyptic number.

It is an amenable number.

1255913013 is a deficient number, since it is larger than the sum of its proper divisors (473985483).

1255913013 is a wasteful number, since it uses less digits than its factorization.

1255913013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10424.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 1255913013 is about 35438.8630319879. The cubic root of 1255913013 is about 1078.9132337810.

The spelling of 1255913013 in words is "one billion, two hundred fifty-five million, nine hundred thirteen thousand, thirteen".