25032217 has 4 divisors (see below), whose sum is σ = 28608256. Its totient is φ = 21456180.

The previous prime is 25032209. The next prime is 25032223. The reversal of 25032217 is 71223052.

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 25032217 - 2³ = 25032209 is a prime.

It is a super-2 number, since 2×25032217² = 1253223775870178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25032277) 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, 1788009 + ... + 1788022.

It is an arithmetic number, because the mean of its divisors is an integer number (7152064).

Almost surely, 2^25032217 is an apocalyptic number.

It is an amenable number.

25032217 is a deficient number, since it is larger than the sum of its proper divisors (3576039).

25032217 is an equidigital number, since it uses as much as digits as its factorization.

25032217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576038.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 25032217 is about 5003.2206627332. The cubic root of 25032217 is about 292.5273240113.

Adding to 25032217 its reverse (71223052), we get a palindrome (96255269).

The spelling of 25032217 in words is "twenty-five million, thirty-two thousand, two hundred seventeen".