25115000 has 40 divisors (see below), whose sum is σ = 58856160. Its totient is φ = 10044000.

The previous prime is 25114997. The next prime is 25115003. The reversal of 25115000 is 51152.

It is an interprime number because it is at equal distance from previous prime (25114997) and next prime (25115003).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25115003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2489 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (1471404).

Almost surely, 2^25115000 is an apocalyptic number.

25115000 is a gapful number since it is divisible by the number (20) 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 25115000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29428080).

25115000 is an abundant number, since it is smaller than the sum of its proper divisors (33741160).

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

25115000 is an equidigital number, since it uses as much as digits as its factorization.

25115000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049 (or 5030 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 25115000 is about 5011.4868053303. The cubic root of 25115000 is about 292.8494374902.

Adding to 25115000 its reverse (51152), we get a palindrome (25166152).

It can be divided in two parts, 251 and 15000, that added together give a palindrome (15251).

The spelling of 25115000 in words is "twenty-five million, one hundred fifteen thousand".