25009223 has 4 divisors (see below), whose sum is σ = 25871640. Its totient is φ = 24146808.

The previous prime is 25009189. The next prime is 25009241. The reversal of 25009223 is 32290052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25009223 - 2¹⁶ = 24943687 is a prime.

It is a super-2 number, since 2×25009223² = 1250922470127458, 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 (25009423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431165 + ... + 431222.

It is an arithmetic number, because the mean of its divisors is an integer number (6467910).

Almost surely, 2^25009223 is an apocalyptic number.

25009223 is a deficient number, since it is larger than the sum of its proper divisors (862417).

25009223 is an equidigital number, since it uses as much as digits as its factorization.

25009223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862416.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 25009223 is about 5000.9222149520. The cubic root of 25009223 is about 292.4377270212.

Adding to 25009223 its reverse (32290052), we get a palindrome (57299275).

The spelling of 25009223 in words is "twenty-five million, nine thousand, two hundred twenty-three".