25204231 has 4 divisors (see below), whose sum is σ = 27143032. Its totient is φ = 23265432.

The previous prime is 25204229. The next prime is 25204237. The reversal of 25204231 is 13240252.

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 25204231 - 2¹ = 25204229 is a prime.

It is a super-2 number, since 2×25204231² = 1270506520602722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25204199 and 25204208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25204237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969381 + ... + 969406.

It is an arithmetic number, because the mean of its divisors is an integer number (6785758).

Almost surely, 2^25204231 is an apocalyptic number.

25204231 is a deficient number, since it is larger than the sum of its proper divisors (1938801).

25204231 is a wasteful number, since it uses less digits than its factorization.

25204231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938800.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25204231 is about 5020.3815592044. The cubic root of 25204231 is about 293.1958488233.

Adding to 25204231 its reverse (13240252), we get a palindrome (38444483).

The spelling of 25204231 in words is "twenty-five million, two hundred four thousand, two hundred thirty-one".