12525321 has 8 divisors (see below), whose sum is σ = 16755040. Its totient is φ = 8322912.

The previous prime is 12525301. The next prime is 12525347. The reversal of 12525321 is 12352521.

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

It is not a de Polignac number, because 12525321 - 2⁶ = 12525257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12525301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5731 + ... + 7608.

It is an arithmetic number, because the mean of its divisors is an integer number (2094380).

Almost surely, 2^12525321 is an apocalyptic number.

It is an amenable number.

12525321 is a deficient number, since it is larger than the sum of its proper divisors (4229719).

12525321 is a wasteful number, since it uses less digits than its factorization.

12525321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13655.

The product of its digits is 600, while the sum is 21.

The square root of 12525321 is about 3539.1130244738. The cubic root of 12525321 is about 232.2360422151.

Adding to 12525321 its reverse (12352521), we get a palindrome (24877842).

The spelling of 12525321 in words is "twelve million, five hundred twenty-five thousand, three hundred twenty-one".