25479872 has 56 divisors (see below), whose sum is σ = 58430160. Its totient is φ = 10895360.

The previous prime is 25479871. The next prime is 25479877. The reversal of 25479872 is 27897452.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (25479871) 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, 10904 + ... + 13032.

Almost surely, 2^25479872 is an apocalyptic number.

25479872 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 25479872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29215080).

25479872 is an abundant number, since it is smaller than the sum of its proper divisors (32950288).

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

25479872 is a wasteful number, since it uses less digits than its factorization.

25479872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2159 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 25479872 is about 5047.7591067720. The cubic root of 25479872 is about 294.2608017908.

The spelling of 25479872 in words is "twenty-five million, four hundred seventy-nine thousand, eight hundred seventy-two".