25897872 has 240 divisors, whose sum is σ = 92355200. Its totient is φ = 6209280.

The previous prime is 25897849. The next prime is 25897877. The reversal of 25897872 is 27879852.

It is a Harshad number since it is a multiple of its sum of digits (48).

Its product of digits (564480) is a multiple of the sum of its prime divisors (36).

It is not an unprimeable number, because it can be changed into a prime (25897877) 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 47 ways as a sum of consecutive naturals, for example, 1992138 + ... + 1992150.

Almost surely, 2^25897872 is an apocalyptic number.

25897872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25897872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46177600).

25897872 is an abundant number, since it is smaller than the sum of its proper divisors (66457328).

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

25897872 is a wasteful number, since it uses less digits than its factorization.

25897872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 36 counting only the distinct ones).

The product of its digits is 564480, while the sum is 48.

The square root of 25897872 is about 5088.9951856924. The cubic root of 25897872 is about 295.8612083677.

The spelling of 25897872 in words is "twenty-five million, eight hundred ninety-seven thousand, eight hundred seventy-two".