15423252513 has 16 divisors (see below), whose sum is σ = 21055843776. Its totient is φ = 10036716480.

The previous prime is 15423252487. The next prime is 15423252521. The reversal of 15423252513 is 31525232451.

It is not a de Polignac number, because 15423252513 - 2¹³ = 15423244321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15423252553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172231 + ... + 245987.

It is an arithmetic number, because the mean of its divisors is an integer number (1315990236).

Almost surely, 2^15423252513 is an apocalyptic number.

It is an amenable number.

15423252513 is a deficient number, since it is larger than the sum of its proper divisors (5632591263).

15423252513 is a wasteful number, since it uses less digits than its factorization.

15423252513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75424.

The product of its digits is 36000, while the sum is 33.

Adding to 15423252513 its reverse (31525232451), we get a palindrome (46948484964).

The spelling of 15423252513 in words is "fifteen billion, four hundred twenty-three million, two hundred fifty-two thousand, five hundred thirteen".