15013552231 has 4 divisors (see below), whose sum is σ = 15015409992. Its totient is φ = 15011694472.

The previous prime is 15013552217. The next prime is 15013552237. The reversal of 15013552231 is 13225531051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13225531051 = 137 ⋅96536723.

It is a cyclic number.

It is not a de Polignac number, because 15013552231 - 2⁹ = 15013551719 is a prime.

It is a super-2 number, since 2×15013552231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15013552231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15013552237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916705 + ... + 932938.

It is an arithmetic number, because the mean of its divisors is an integer number (3753852498).

Almost surely, 2^15013552231 is an apocalyptic number.

15013552231 is a deficient number, since it is larger than the sum of its proper divisors (1857761).

15013552231 is an equidigital number, since it uses as much as digits as its factorization.

15013552231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857760.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 15013552231 in words is "fifteen billion, thirteen million, five hundred fifty-two thousand, two hundred thirty-one".