12515663050 has 24 divisors (see below), whose sum is σ = 25395419232. Its totient is φ = 4551150000.

The previous prime is 12515662981. The next prime is 12515663051. The reversal of 12515663050 is 5036651521.

It is a super-2 number, since 2×12515663050² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12515662997 and 12515663015.

It is not an unprimeable number, because it can be changed into a prime (12515663051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11377326 + ... + 11378425.

It is an arithmetic number, because the mean of its divisors is an integer number (1058142468).

Almost surely, 2^12515663050 is an apocalyptic number.

12515663050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12515663050 is an abundant number, since it is smaller than the sum of its proper divisors (12879756182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12515663050 is a wasteful number, since it uses less digits than its factorization.

12515663050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22755774 (or 22755769 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 12515663050 in words is "twelve billion, five hundred fifteen million, six hundred sixty-three thousand, fifty".