25340417 has 4 divisors (see below), whose sum is σ = 25687620. Its totient is φ = 24993216.

The previous prime is 25340407. The next prime is 25340443. The reversal of 25340417 is 71404352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11082241 + 14258176 = 3329^2 + 3776^2 .

It is a cyclic number.

It is not a de Polignac number, because 25340417 - 2⁴ = 25340401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25340407) 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, 173492 + ... + 173637.

It is an arithmetic number, because the mean of its divisors is an integer number (6421905).

Almost surely, 2^25340417 is an apocalyptic number.

It is an amenable number.

25340417 is a deficient number, since it is larger than the sum of its proper divisors (347203).

25340417 is an equidigital number, since it uses as much as digits as its factorization.

25340417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347202.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 25340417 is about 5033.9265985908. The cubic root of 25340417 is about 293.7229755130.

Adding to 25340417 its reverse (71404352), we get a palindrome (96744769).

The spelling of 25340417 in words is "twenty-five million, three hundred forty thousand, four hundred seventeen".