25081872 has 40 divisors (see below), whose sum is σ = 65474976. Its totient is φ = 8272896.

The previous prime is 25081871. The next prime is 25081907. The reversal of 25081872 is 27818052.

It is not an unprimeable number, because it can be changed into a prime (25081871) 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, 1963 + ... + 7349.

Almost surely, 2^25081872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25081872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32737488).

25081872 is an abundant number, since it is smaller than the sum of its proper divisors (40393104).

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

25081872 is a wasteful number, since it uses less digits than its factorization.

25081872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 25081872 is about 5008.1805079290. The cubic root of 25081872 is about 292.7206195873.

The spelling of 25081872 in words is "twenty-five million, eighty-one thousand, eight hundred seventy-two".