25718223 has 8 divisors (see below), whose sum is σ = 34606000. Its totient is φ = 16987968.

The previous prime is 25718221. The next prime is 25718227. The reversal of 25718223 is 32281752.

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

It is not a de Polignac number, because 25718223 - 2¹ = 25718221 is a prime.

It is a super-2 number, since 2×25718223² = 1322853988555458, 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 (25718221) 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, 38998 + ... + 39651.

It is an arithmetic number, because the mean of its divisors is an integer number (4325750).

Almost surely, 2^25718223 is an apocalyptic number.

25718223 is a deficient number, since it is larger than the sum of its proper divisors (8887777).

25718223 is a wasteful number, since it uses less digits than its factorization.

25718223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78761.

The product of its digits is 6720, while the sum is 30.

The square root of 25718223 is about 5071.3137351183. The cubic root of 25718223 is about 295.1755079341.

Adding to 25718223 its reverse (32281752), we get a palindrome (57999975).

The spelling of 25718223 in words is "twenty-five million, seven hundred eighteen thousand, two hundred twenty-three".