225522023 has 4 divisors (see below), whose sum is σ = 225744360. Its totient is φ = 225299688.

The previous prime is 225521987. The next prime is 225522029. The reversal of 225522023 is 320225522.

It is a happy number.

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 225522023 - 2¹² = 225517927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225522023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225522029) 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, 109640 + ... + 111677.

It is an arithmetic number, because the mean of its divisors is an integer number (56436090).

Almost surely, 2^225522023 is an apocalyptic number.

225522023 is a deficient number, since it is larger than the sum of its proper divisors (222337).

225522023 is a wasteful number, since it uses less digits than its factorization.

225522023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222336.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 225522023 is about 15017.3906854686. The cubic root of 225522023 is about 608.6902139296.

Adding to 225522023 its reverse (320225522), we get a palindrome (545747545).

The spelling of 225522023 in words is "two hundred twenty-five million, five hundred twenty-two thousand, twenty-three".