13215025519 has 2 divisors, whose sum is σ = 13215025520. Its totient is φ = 13215025518.

The previous prime is 13215025511. The next prime is 13215025547. The reversal of 13215025519 is 91552051231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13215025519 - 2³ = 13215025511 is a prime.

It is a super-2 number, since 2×13215025519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13215025511) 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 as a sum of consecutive naturals, namely, 6607512759 + 6607512760.

It is an arithmetic number, because the mean of its divisors is an integer number (6607512760).

Almost surely, 2^13215025519 is an apocalyptic number.

13215025519 is a deficient number, since it is larger than the sum of its proper divisors (1).

13215025519 is an equidigital number, since it uses as much as digits as its factorization.

13215025519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 13215025519 in words is "thirteen billion, two hundred fifteen million, twenty-five thousand, five hundred nineteen".