25343217 has 24 divisors (see below), whose sum is σ = 38458368. Its totient is φ = 16051200.

The previous prime is 25343203. The next prime is 25343221. The reversal of 25343217 is 71234352.

It is not a de Polignac number, because 25343217 - 2¹⁰ = 25342193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25343117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39217 + ... + 39857.

It is an arithmetic number, because the mean of its divisors is an integer number (1602432).

Almost surely, 2^25343217 is an apocalyptic number.

It is an amenable number.

25343217 is a deficient number, since it is larger than the sum of its proper divisors (13115151).

25343217 is a wasteful number, since it uses less digits than its factorization.

25343217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 858 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 25343217 is about 5034.2047038236. The cubic root of 25343217 is about 293.7337934623.

Adding to 25343217 its reverse (71234352), we get a palindrome (96577569).

It can be divided in two parts, 253 and 43217, that multiplied together give a palindrome (10933901).

The spelling of 25343217 in words is "twenty-five million, three hundred forty-three thousand, two hundred seventeen".