25804261 has 8 divisors (see below), whose sum is σ = 31042880. Its totient is φ = 20953728.

The previous prime is 25804243. The next prime is 25804309. The reversal of 25804261 is 16240852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25804261 - 2¹¹ = 25802213 is a prime.

It is a super-2 number, since 2×25804261² = 1331719771512242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25804201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96876 + ... + 97141.

It is an arithmetic number, because the mean of its divisors is an integer number (3880360).

Almost surely, 2^25804261 is an apocalyptic number.

It is an amenable number.

25804261 is a deficient number, since it is larger than the sum of its proper divisors (5238619).

25804261 is a wasteful number, since it uses less digits than its factorization.

25804261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194043.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 25804261 is about 5079.7894641412. The cubic root of 25804261 is about 295.5043025857.

The spelling of 25804261 in words is "twenty-five million, eight hundred four thousand, two hundred sixty-one".