25604267 has 16 divisors (see below), whose sum is σ = 30293760. Its totient is φ = 21412512.

The previous prime is 25604263. The next prime is 25604269. The reversal of 25604267 is 76240652.

It is a cyclic number.

It is not a de Polignac number, because 25604267 - 2² = 25604263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25604263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3428 + ... + 7934.

It is an arithmetic number, because the mean of its divisors is an integer number (1893360).

Almost surely, 2^25604267 is an apocalyptic number.

25604267 is a deficient number, since it is larger than the sum of its proper divisors (4689493).

25604267 is a wasteful number, since it uses less digits than its factorization.

25604267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 25604267 is about 5060.0659086617. The cubic root of 25604267 is about 294.7388937340.

The spelling of 25604267 in words is "twenty-five million, six hundred four thousand, two hundred sixty-seven".