25369121 has 4 divisors (see below), whose sum is σ = 25463700. Its totient is φ = 25274544.

The previous prime is 25369111. The next prime is 25369147. The reversal of 25369121 is 12196352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11826721 + 13542400 = 3439^2 + 3680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25369121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25369111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46886 + ... + 47423.

It is an arithmetic number, because the mean of its divisors is an integer number (6365925).

Almost surely, 2^25369121 is an apocalyptic number.

It is an amenable number.

25369121 is a deficient number, since it is larger than the sum of its proper divisors (94579).

25369121 is an equidigital number, since it uses as much as digits as its factorization.

25369121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94578.

The product of its digits is 3240, while the sum is 29.

The square root of 25369121 is about 5036.7768463572. The cubic root of 25369121 is about 293.8338371840.

The spelling of 25369121 in words is "twenty-five million, three hundred sixty-nine thousand, one hundred twenty-one".