25325340 has 24 divisors (see below), whose sum is σ = 70911120. Its totient is φ = 6753408.

The previous prime is 25325327. The next prime is 25325341. The reversal of 25325340 is 4352352.

It is a super-2 number, since 2×25325340² = 1282745692231200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25325340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25325341) 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, 210985 + ... + 211104.

It is an arithmetic number, because the mean of its divisors is an integer number (2954630).

Almost surely, 2^25325340 is an apocalyptic number.

25325340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25325340 is an abundant number, since it is smaller than the sum of its proper divisors (45585780).

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

25325340 is a wasteful number, since it uses less digits than its factorization.

25325340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422101 (or 422099 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 25325340 is about 5032.4288370527. The cubic root of 25325340 is about 293.6647110170.

Adding to 25325340 its reverse (4352352), we get a palindrome (29677692).

The spelling of 25325340 in words is "twenty-five million, three hundred twenty-five thousand, three hundred forty".