25040917 has 8 divisors (see below), whose sum is σ = 28755360. Its totient is φ = 21566160.

The previous prime is 25040903. The next prime is 25040929. The reversal of 25040917 is 71904052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25040917 - 2⁷ = 25040789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25040987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59698 + ... + 60115.

It is an arithmetic number, because the mean of its divisors is an integer number (3594420).

Almost surely, 2^25040917 is an apocalyptic number.

It is an amenable number.

25040917 is a deficient number, since it is larger than the sum of its proper divisors (3714443).

25040917 is a wasteful number, since it uses less digits than its factorization.

25040917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119843.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 25040917 is about 5004.0900271678. The cubic root of 25040917 is about 292.5612095828.

Adding to 25040917 its reverse (71904052), we get a palindrome (96944969).

The spelling of 25040917 in words is "twenty-five million, forty thousand, nine hundred seventeen".