25117488 has 120 divisors (see below), whose sum is σ = 77936976. Its totient is φ = 7488000.

The previous prime is 25117441. The next prime is 25117489. The reversal of 25117488 is 88471152.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25117489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159906 + ... + 160062.

Almost surely, 2^25117488 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 25117488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38968488).

25117488 is an abundant number, since it is smaller than the sum of its proper divisors (52819488).

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

25117488 is a wasteful number, since it uses less digits than its factorization.

25117488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 274 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 25117488 is about 5011.7350289096. The cubic root of 25117488 is about 292.8591074795.

It can be divided in two parts, 2511 and 7488, that added together give a palindrome (9999).

The spelling of 25117488 in words is "twenty-five million, one hundred seventeen thousand, four hundred eighty-eight".