2256520130515 has 12 divisors (see below), whose sum is σ = 3149917896816. Its totient is φ = 1547328089328.

The previous prime is 2256520130503. The next prime is 2256520130521. The reversal of 2256520130515 is 5150310256522.

2256520130515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2256520130515 - 2⁵ = 2256520130483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4605142879 + ... + 4605143368.

It is an arithmetic number, because the mean of its divisors is an integer number (262493158068).

Almost surely, 2^{2256520130515} is an apocalyptic number.

2256520130515 is a deficient number, since it is larger than the sum of its proper divisors (893397766301).

2256520130515 is an equidigital number, since it uses as much as digits as its factorization.

2256520130515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210286266 (or 9210286259 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 2256520130515 in words is "two trillion, two hundred fifty-six billion, five hundred twenty million, one hundred thirty thousand, five hundred fifteen".