25231104 has 108 divisors (see below), whose sum is σ = 74614176. Its totient is φ = 8196096.

The previous prime is 25231103. The next prime is 25231121. The reversal of 25231104 is 40113252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25231103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108172 + ... + 108404.

It is an arithmetic number, because the mean of its divisors is an integer number (690872).

Almost surely, 2^25231104 is an apocalyptic number.

25231104 is a gapful number since it is divisible by the number (24) 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 25231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37307088).

25231104 is an abundant number, since it is smaller than the sum of its proper divisors (49383072).

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

25231104 is a wasteful number, since it uses less digits than its factorization.

25231104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 25231104 is about 5023.0572363850. The cubic root of 25231104 is about 293.3000145811.

Adding to 25231104 its reverse (40113252), we get a palindrome (65344356).

The spelling of 25231104 in words is "twenty-five million, two hundred thirty-one thousand, one hundred four".