25170541 has 8 divisors (see below), whose sum is σ = 27687168. Its totient is φ = 22881100.

The previous prime is 25170517. The next prime is 25170547. The reversal of 25170541 is 14507152.

It is not a de Polignac number, because 25170541 - 2¹⁵ = 25137773 is a prime.

It is a super-2 number, since 2×25170541² = 1267112268465362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25170547) 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, 8125 + ... + 10786.

It is an arithmetic number, because the mean of its divisors is an integer number (3460896).

Almost surely, 2^25170541 is an apocalyptic number.

It is an amenable number.

25170541 is a deficient number, since it is larger than the sum of its proper divisors (2516627).

25170541 is an equidigital number, since it uses as much as digits as its factorization.

25170541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18944 (or 18922 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 25170541 is about 5017.0251145475. The cubic root of 25170541 is about 293.0651541983.

Adding to 25170541 its reverse (14507152), we get a palindrome (39677693).

The spelling of 25170541 in words is "twenty-five million, one hundred seventy thousand, five hundred forty-one".