12769825 has 6 divisors (see below), whose sum is σ = 15834614. Its totient is φ = 10215840.

The previous prime is 12769793. The next prime is 12769829. The reversal of 12769825 is 52896721.

It can be written as a sum of positive squares in 3 ways, for example, as 463761 + 12306064 = 681^2 + 3508^2 .

It is not a de Polignac number, because 12769825 - 2⁵ = 12769793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12769829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255372 + ... + 255421.

Almost surely, 2^12769825 is an apocalyptic number.

It is an amenable number.

12769825 is a deficient number, since it is larger than the sum of its proper divisors (3064789).

12769825 is an equidigital number, since it uses as much as digits as its factorization.

12769825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510803 (or 510798 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 12769825 is about 3573.4891912527. The cubic root of 12769825 is about 233.7374572659.

The spelling of 12769825 in words is "twelve million, seven hundred sixty-nine thousand, eight hundred twenty-five".