25307223 has 8 divisors (see below), whose sum is σ = 34655088. Its totient is φ = 16415424.

The previous prime is 25307213. The next prime is 25307257. The reversal of 25307223 is 32270352.

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

It is not a de Polignac number, because 25307223 - 2⁴ = 25307207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25307193 and 25307202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25307213) 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, 113886 + ... + 114107.

It is an arithmetic number, because the mean of its divisors is an integer number (4331886).

Almost surely, 2^25307223 is an apocalyptic number.

25307223 is a deficient number, since it is larger than the sum of its proper divisors (9347865).

25307223 is a wasteful number, since it uses less digits than its factorization.

25307223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228033.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 25307223 is about 5030.6284895627. The cubic root of 25307223 is about 293.5946679595.

Adding to 25307223 its reverse (32270352), we get a palindrome (57577575).

The spelling of 25307223 in words is "twenty-five million, three hundred seven thousand, two hundred twenty-three".