25804120 has 32 divisors (see below), whose sum is σ = 58611600. Its totient is φ = 10223488.

The previous prime is 25804073. The next prime is 25804123. The reversal of 25804120 is 2140852.

It is a junction number, because it is equal to n+sod(n) for n = 25804091 and 25804100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25804123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 7294.

Almost surely, 2^25804120 is an apocalyptic number.

25804120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25804120 is an abundant number, since it is smaller than the sum of its proper divisors (32807480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25804120 is a wasteful number, since it uses less digits than its factorization.

25804120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147 (or 6143 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 25804120 is about 5079.7755855943. The cubic root of 25804120 is about 295.5037643519.

Adding to 25804120 its reverse (2140852), we get a palindrome (27944972).

The spelling of 25804120 in words is "twenty-five million, eight hundred four thousand, one hundred twenty".