12515005042 has 32 divisors (see below), whose sum is σ = 20308579200. Its totient is φ = 5766380928.

The previous prime is 12515005001. The next prime is 12515005049. The reversal of 12515005042 is 24050051521.

It is a junction number, because it is equal to n+sod(n) for n = 12515004998 and 12515005016.

It is not an unprimeable number, because it can be changed into a prime (12515005049) 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, 612934 + ... + 633022.

It is an arithmetic number, because the mean of its divisors is an integer number (634643100).

Almost surely, 2^12515005042 is an apocalyptic number.

12515005042 is a deficient number, since it is larger than the sum of its proper divisors (7793574158).

12515005042 is a wasteful number, since it uses less digits than its factorization.

12515005042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20610.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 12515005042 its reverse (24050051521), we get a palindrome (36565056563).

The spelling of 12515005042 in words is "twelve billion, five hundred fifteen million, five thousand, forty-two".