25231325 has 36 divisors (see below), whose sum is σ = 37319040. Its totient is φ = 16863840.

The previous prime is 25231319. The next prime is 25231331. The reversal of 25231325 is 52313252.

It is an interprime number because it is at equal distance from previous prime (25231319) and next prime (25231331).

It is not a de Polignac number, because 25231325 - 2⁴ = 25231309 is a prime.

It is a super-2 number, since 2×25231325² = 1273239522511250, 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 25231325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52436 + ... + 52914.

It is an arithmetic number, because the mean of its divisors is an integer number (1036640).

Almost surely, 2^25231325 is an apocalyptic number.

25231325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25231325 is a deficient number, since it is larger than the sum of its proper divisors (12087715).

25231325 is a wasteful number, since it uses less digits than its factorization.

25231325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 534 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 25231325 is about 5023.0792348917. The cubic root of 25231325 is about 293.3008709198.

Adding to 25231325 its reverse (52313252), we get a palindrome (77544577).

The spelling of 25231325 in words is "twenty-five million, two hundred thirty-one thousand, three hundred twenty-five".