15252500015 has 4 divisors (see below), whose sum is σ = 18303000024. Its totient is φ = 12202000008.

The previous prime is 15252499981. The next prime is 15252500051. The reversal of 15252500015 is 51000525251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15252500015 - 2²⁸ = 14984064559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525249997 + ... + 1525250006.

It is an arithmetic number, because the mean of its divisors is an integer number (4575750006).

Almost surely, 2^15252500015 is an apocalyptic number.

15252500015 is a deficient number, since it is larger than the sum of its proper divisors (3050500009).

15252500015 is an equidigital number, since it uses as much as digits as its factorization.

15252500015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050500008.

The product of its (nonzero) digits is 2500, while the sum is 26.

The spelling of 15252500015 in words is "fifteen billion, two hundred fifty-two million, five hundred thousand, fifteen".