25459872 has 24 divisors (see below), whose sum is σ = 66832416. Its totient is φ = 8486592.

The previous prime is 25459859. The next prime is 25459877. The reversal of 25459872 is 27895452.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (25459877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132508 + ... + 132699.

It is an arithmetic number, because the mean of its divisors is an integer number (2784684).

Almost surely, 2^25459872 is an apocalyptic number.

It is an amenable number.

25459872 is an abundant number, since it is smaller than the sum of its proper divisors (41372544).

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

25459872 is a wasteful number, since it uses less digits than its factorization.

25459872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265220 (or 265212 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 25459872 is about 5045.7776407606. Note that the first 3 decimals coincide. The cubic root of 25459872 is about 294.1837899368.

The spelling of 25459872 in words is "twenty-five million, four hundred fifty-nine thousand, eight hundred seventy-two".