12500015 has 32 divisors (see below), whose sum is σ = 17962560. Its totient is φ = 8243200.

The previous prime is 12500003. The next prime is 12500029. The reversal of 12500015 is 51000521.

It is not a de Polignac number, because 12500015 - 2⁴ = 12499999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26885 + ... + 27345.

It is an arithmetic number, because the mean of its divisors is an integer number (561330).

Almost surely, 2^12500015 is an apocalyptic number.

12500015 is a deficient number, since it is larger than the sum of its proper divisors (5462545).

12500015 is a wasteful number, since it uses less digits than its factorization.

12500015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 12500015 is about 3535.5360272524. The cubic root of 12500015 is about 232.0795345124.

Adding to 12500015 its reverse (51000521), we get a palindrome (63500536).

The spelling of 12500015 in words is "twelve million, five hundred thousand, fifteen".