11257515305 has 16 divisors (see below), whose sum is σ = 13948068864. Its totient is φ = 8713448640.

The previous prime is 11257515289. The next prime is 11257515329. The reversal of 11257515305 is 50351575211.

It is not a de Polignac number, because 11257515305 - 2⁴ = 11257515289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1261439 + ... + 1270331.

It is an arithmetic number, because the mean of its divisors is an integer number (871754304).

Almost surely, 2^11257515305 is an apocalyptic number.

It is an amenable number.

11257515305 is a deficient number, since it is larger than the sum of its proper divisors (2690553559).

11257515305 is an equidigital number, since it uses as much as digits as its factorization.

11257515305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17096.

The product of its (nonzero) digits is 26250, while the sum is 35.

The spelling of 11257515305 in words is "eleven billion, two hundred fifty-seven million, five hundred fifteen thousand, three hundred five".