25439488 has 36 divisors (see below), whose sum is σ = 51983008. Its totient is φ = 12418560.

The previous prime is 25439483. The next prime is 25439503. The reversal of 25439488 is 88493452.

It is a super-3 number, since 3×25439488³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25439483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9853 + ... + 12163.

Almost surely, 2^25439488 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 25439488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25991504).

25439488 is an abundant number, since it is smaller than the sum of its proper divisors (26543520).

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

25439488 is an equidigital number, since it uses as much as digits as its factorization.

25439488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2356 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 25439488 is about 5043.7573296105. The cubic root of 25439488 is about 294.1052579440.

The spelling of 25439488 in words is "twenty-five million, four hundred thirty-nine thousand, four hundred eighty-eight".