25232217 has 4 divisors (see below), whose sum is σ = 33642960. Its totient is φ = 16821476.

The previous prime is 25232213. The next prime is 25232239. The reversal of 25232217 is 71223252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25232217 - 2² = 25232213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25232213) 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, 4205367 + ... + 4205372.

It is an arithmetic number, because the mean of its divisors is an integer number (8410740).

Almost surely, 2^25232217 is an apocalyptic number.

It is an amenable number.

25232217 is a deficient number, since it is larger than the sum of its proper divisors (8410743).

25232217 is an equidigital number, since it uses as much as digits as its factorization.

25232217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410742.

The product of its digits is 1680, while the sum is 24.

The square root of 25232217 is about 5023.1680242652. The cubic root of 25232217 is about 293.3043272225.

Adding to 25232217 its reverse (71223252), we get a palindrome (96455469).

The spelling of 25232217 in words is "twenty-five million, two hundred thirty-two thousand, two hundred seventeen".