25242525 has 144 divisors (see below), whose sum is σ = 59424768. Its totient is φ = 9936000.

The previous prime is 25242517. The next prime is 25242533. The reversal of 25242525 is 52524252.

It is an interprime number because it is at equal distance from previous prime (25242517) and next prime (25242533).

It is not a de Polignac number, because 25242525 - 2³ = 25242517 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 537052 + ... + 537098.

It is an arithmetic number, because the mean of its divisors is an integer number (412672).

Almost surely, 2^25242525 is an apocalyptic number.

25242525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25242525 is an abundant number, since it is smaller than the sum of its proper divisors (34182243).

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

25242525 is a wasteful number, since it uses less digits than its factorization.

25242525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 104 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 25242525 is about 5024.1939652048. The cubic root of 25242525 is about 293.3442625347.

Adding to 25242525 its reverse (52524252), we get a palindrome (77766777).

The spelling of 25242525 in words is "twenty-five million, two hundred forty-two thousand, five hundred twenty-five".