25983280 has 20 divisors (see below), whose sum is σ = 60411312. Its totient is φ = 10393280.

The previous prime is 25983277. The next prime is 25983281. The reversal of 25983280 is 8238952.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (25983281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162316 + ... + 162475.

Almost surely, 2^25983280 is an apocalyptic number.

25983280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25983280 is an abundant number, since it is smaller than the sum of its proper divisors (34428032).

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

25983280 is a wasteful number, since it uses less digits than its factorization.

25983280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324804 (or 324798 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 25983280 is about 5097.3797190321. The cubic root of 25983280 is about 296.1860894614.

The spelling of 25983280 in words is "twenty-five million, nine hundred eighty-three thousand, two hundred eighty".