12992825 has 6 divisors (see below), whose sum is σ = 16111134. Its totient is φ = 10394240.

The previous prime is 12992807. The next prime is 12992831. The reversal of 12992825 is 52829921.

It can be written as a sum of positive squares in 3 ways, for example, as 2835856 + 10156969 = 1684^2 + 3187^2 .

It is not a de Polignac number, because 12992825 - 2⁶ = 12992761 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 5 ways as a sum of consecutive naturals, for example, 259832 + ... + 259881.

It is an arithmetic number, because the mean of its divisors is an integer number (2685189).

Almost surely, 2^12992825 is an apocalyptic number.

It is an amenable number.

12992825 is a deficient number, since it is larger than the sum of its proper divisors (3118309).

12992825 is an equidigital number, since it uses as much as digits as its factorization.

12992825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519723 (or 519718 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 12992825 is about 3604.5561446591. The cubic root of 12992825 is about 235.0902022820.

The spelling of 12992825 in words is "twelve million, nine hundred ninety-two thousand, eight hundred twenty-five".