25363431 has 6 divisors (see below), whose sum is σ = 36636080. Its totient is φ = 16908948.

The previous prime is 25363381. The next prime is 25363433. The reversal of 25363431 is 13436352.

It is a happy number.

25363431 is a `hidden beast` number, since 25 + 3 + 634 + 3 + 1 = 666.

It is not a de Polignac number, because 25363431 - 2⁶ = 25363367 is a prime.

It is a super-2 number, since 2×25363431² = 1286607264183522, 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 = 25363395 and 25363404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25363433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1409071 + ... + 1409088.

Almost surely, 2^25363431 is an apocalyptic number.

25363431 is a deficient number, since it is larger than the sum of its proper divisors (11272649).

25363431 is a wasteful number, since it uses less digits than its factorization.

25363431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818165 (or 2818162 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 25363431 is about 5036.2119693277. The cubic root of 25363431 is about 293.8118676993.

Adding to 25363431 its reverse (13436352), we get a palindrome (38799783).

The spelling of 25363431 in words is "twenty-five million, three hundred sixty-three thousand, four hundred thirty-one".