12725824 has 14 divisors (see below), whose sum is σ = 25252934. Its totient is φ = 6362880.

The previous prime is 12725821. The next prime is 12725837. The reversal of 12725824 is 42852721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10036224 + 2689600 = 3168^2 + 1640^2 .

It is a super-4 number, since 4×12725824⁴ (a number of 30 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (12725821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99357 + ... + 99484.

It is an arithmetic number, because the mean of its divisors is an integer number (1803781).

Almost surely, 2^12725824 is an apocalyptic number.

It is an amenable number.

12725824 is a deficient number, since it is larger than the sum of its proper divisors (12527110).

12725824 is an equidigital number, since it uses as much as digits as its factorization.

12725824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198853 (or 198843 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 12725824 is about 3567.3272908439. The cubic root of 12725824 is about 233.4686851888.

The spelling of 12725824 in words is "twelve million, seven hundred twenty-five thousand, eight hundred twenty-four".