25228223 has 4 divisors (see below), whose sum is σ = 25655880. Its totient is φ = 24800568.

The previous prime is 25228211. The next prime is 25228241. The reversal of 25228223 is 32282252.

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 25228223 - 2⁸ = 25227967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25228192 and 25228201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25228253) 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, 213740 + ... + 213857.

It is an arithmetic number, because the mean of its divisors is an integer number (6413970).

Almost surely, 2^25228223 is an apocalyptic number.

25228223 is a deficient number, since it is larger than the sum of its proper divisors (427657).

25228223 is an equidigital number, since it uses as much as digits as its factorization.

25228223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427656.

The product of its digits is 3840, while the sum is 26.

The square root of 25228223 is about 5022.7704506577. The cubic root of 25228223 is about 293.2888507215.

It can be divided in two parts, 2 and 5228223, that added together give a palindrome (5228225).

The spelling of 25228223 in words is "twenty-five million, two hundred twenty-eight thousand, two hundred twenty-three".