12502865 has 8 divisors (see below), whose sum is σ = 15249768. Its totient is φ = 9838080.

The previous prime is 12502829. The next prime is 12502873. The reversal of 12502865 is 56820521.

It can be written as a sum of positive squares in 4 ways, for example, as 399424 + 12103441 = 632^2 + 3479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12502865 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20192 + ... + 20801.

It is an arithmetic number, because the mean of its divisors is an integer number (1906221).

Almost surely, 2^12502865 is an apocalyptic number.

It is an amenable number.

12502865 is a deficient number, since it is larger than the sum of its proper divisors (2746903).

12502865 is an equidigital number, since it uses as much as digits as its factorization.

12502865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41059.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 12502865 is about 3535.9390549047. The cubic root of 12502865 is about 232.0971711955.

The spelling of 12502865 in words is "twelve million, five hundred two thousand, eight hundred sixty-five".