25161317 has 8 divisors (see below), whose sum is σ = 25682400. Its totient is φ = 24643504.

The previous prime is 25161307. The next prime is 25161329. The reversal of 25161317 is 71316152.

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

It is a cyclic number.

It is not a de Polignac number, because 25161317 - 2¹⁰ = 25160293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25161307) 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, 19859 + ... + 21087.

It is an arithmetic number, because the mean of its divisors is an integer number (3210300).

Almost surely, 2^25161317 is an apocalyptic number.

It is an amenable number.

25161317 is a deficient number, since it is larger than the sum of its proper divisors (521083).

25161317 is a wasteful number, since it uses less digits than its factorization.

25161317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635.

The product of its digits is 1260, while the sum is 26.

The square root of 25161317 is about 5016.1057604480. The cubic root of 25161317 is about 293.0293509252.

Adding to 25161317 its reverse (71316152), we get a palindrome (96477469).

The spelling of 25161317 in words is "twenty-five million, one hundred sixty-one thousand, three hundred seventeen".