25804489 has 8 divisors (see below), whose sum is σ = 27266240. Its totient is φ = 24353136.

The previous prime is 25804433. The next prime is 25804543. The reversal of 25804489 is 98440852.

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

It is not a de Polignac number, because 25804489 - 2¹³ = 25796297 is a prime.

It is a super-2 number, since 2×25804489² = 1331743305102242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25807489) 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, 2812 + ... + 7714.

It is an arithmetic number, because the mean of its divisors is an integer number (3408280).

Almost surely, 2^25804489 is an apocalyptic number.

It is an amenable number.

25804489 is a deficient number, since it is larger than the sum of its proper divisors (1461751).

25804489 is a wasteful number, since it uses less digits than its factorization.

25804489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 25804489 is about 5079.8119059666. The cubic root of 25804489 is about 295.5051729172.

The spelling of 25804489 in words is "twenty-five million, eight hundred four thousand, four hundred eighty-nine".