1255513039 has 16 divisors (see below), whose sum is σ = 1383085440. Its totient is φ = 1130220000.

The previous prime is 1255513031. The next prime is 1255513043. The reversal of 1255513039 is 9303155521.

It is a cyclic number.

It is not a de Polignac number, because 1255513039 - 2³ = 1255513031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255512995 and 1255513013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255513031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194064 + ... + 1195114.

It is an arithmetic number, because the mean of its divisors is an integer number (86442840).

Almost surely, 2^1255513039 is an apocalyptic number.

1255513039 is a deficient number, since it is larger than the sum of its proper divisors (127572401).

1255513039 is a wasteful number, since it uses less digits than its factorization.

1255513039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 1255513039 is about 35433.2194275372. The cubic root of 1255513039 is about 1078.7986868189.

The spelling of 1255513039 in words is "one billion, two hundred fifty-five million, five hundred thirteen thousand, thirty-nine".