25672369 has 4 divisors (see below), whose sum is σ = 25684596. Its totient is φ = 25660144.

The previous prime is 25672349. The next prime is 25672379. The reversal of 25672369 is 96327652.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7225344 + 18447025 = 2688^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 25672369 - 2⁹ = 25671857 is a prime.

It is a super-2 number, since 2×25672369² = 1318141060144322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25672349) 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, 2074 + ... + 7459.

It is an arithmetic number, because the mean of its divisors is an integer number (6421149).

Almost surely, 2^25672369 is an apocalyptic number.

It is an amenable number.

25672369 is a deficient number, since it is larger than the sum of its proper divisors (12227).

25672369 is an equidigital number, since it uses as much as digits as its factorization.

25672369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12226.

The product of its digits is 136080, while the sum is 40.

The square root of 25672369 is about 5066.7907989180. The cubic root of 25672369 is about 294.9999770181. Note that the first 4 decimals are identical.

The spelling of 25672369 in words is "twenty-five million, six hundred seventy-two thousand, three hundred sixty-nine".