255512513 has 4 divisors (see below), whose sum is σ = 268960560. Its totient is φ = 242064468.

The previous prime is 255512479. The next prime is 255512519. The reversal of 255512513 is 315215552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255512513 - 2⁶ = 255512449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255512519) 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 3 ways as a sum of consecutive naturals, for example, 6723995 + ... + 6724032.

It is an arithmetic number, because the mean of its divisors is an integer number (67240140).

Almost surely, 2^255512513 is an apocalyptic number.

It is an amenable number.

255512513 is a deficient number, since it is larger than the sum of its proper divisors (13448047).

255512513 is a wasteful number, since it uses less digits than its factorization.

255512513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13448046.

The product of its digits is 7500, while the sum is 29.

The square root of 255512513 is about 15984.7587720303. The cubic root of 255512513 is about 634.5571243867.

The spelling of 255512513 in words is "two hundred fifty-five million, five hundred twelve thousand, five hundred thirteen".