25363231 has 4 divisors (see below), whose sum is σ = 25402264. Its totient is φ = 25324200.

The previous prime is 25363213. The next prime is 25363243. The reversal of 25363231 is 13236352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25363231 - 2⁵ = 25363199 is a prime.

It is a super-2 number, since 2×25363231² = 1286586973518722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 25363196 and 25363205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25363291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18525 + ... + 19846.

It is an arithmetic number, because the mean of its divisors is an integer number (6350566).

Almost surely, 2^25363231 is an apocalyptic number.

25363231 is a deficient number, since it is larger than the sum of its proper divisors (39033).

25363231 is an equidigital number, since it uses as much as digits as its factorization.

25363231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39032.

The product of its digits is 3240, while the sum is 25.

The square root of 25363231 is about 5036.1921130950. The cubic root of 25363231 is about 293.8110954256.

Adding to 25363231 its reverse (13236352), we get a palindrome (38599583).

The spelling of 25363231 in words is "twenty-five million, three hundred sixty-three thousand, two hundred thirty-one".