12515515283 has 2 divisors, whose sum is σ = 12515515284. Its totient is φ = 12515515282.

The previous prime is 12515515267. The next prime is 12515515291. The reversal of 12515515283 is 38251551521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12515515283 - 2⁴ = 12515515267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12515515183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6257757641 + 6257757642.

It is an arithmetic number, because the mean of its divisors is an integer number (6257757642).

Almost surely, 2^12515515283 is an apocalyptic number.

12515515283 is a deficient number, since it is larger than the sum of its proper divisors (1).

12515515283 is an equidigital number, since it uses as much as digits as its factorization.

12515515283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60000, while the sum is 38.

The spelling of 12515515283 in words is "twelve billion, five hundred fifteen million, five hundred fifteen thousand, two hundred eighty-three".