12722825 has 6 divisors (see below), whose sum is σ = 15776334. Its totient is φ = 10178240.

The previous prime is 12722791. The next prime is 12722849. The reversal of 12722825 is 52822721.

It can be written as a sum of positive squares in 3 ways, for example, as 2199289 + 10523536 = 1483^2 + 3244^2 .

It is not a de Polignac number, because 12722825 - 2¹⁰ = 12721801 is a prime.

It is a Duffinian 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, 254432 + ... + 254481.

It is an arithmetic number, because the mean of its divisors is an integer number (2629389).

Almost surely, 2^12722825 is an apocalyptic number.

It is an amenable number.

12722825 is a deficient number, since it is larger than the sum of its proper divisors (3053509).

12722825 is an equidigital number, since it uses as much as digits as its factorization.

12722825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508923 (or 508918 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 12722825 is about 3566.9069233721. The cubic root of 12722825 is about 233.4503438069.

The spelling of 12722825 in words is "twelve million, seven hundred twenty-two thousand, eight hundred twenty-five".