22523245 has 8 divisors (see below), whose sum is σ = 27089784. Its totient is φ = 17977344.

The previous prime is 22523243. The next prime is 22523257. The reversal of 22523245 is 54232522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4435236 + 18088009 = 2106^2 + 4253^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22523245 - 2¹ = 22523243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22523243) 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, 2644 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (3386223).

Almost surely, 2^22523245 is an apocalyptic number.

It is an amenable number.

22523245 is a deficient number, since it is larger than the sum of its proper divisors (4566539).

22523245 is an equidigital number, since it uses as much as digits as its factorization.

22523245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319.

The product of its digits is 4800, while the sum is 25.

The square root of 22523245 is about 4745.8660958775. The cubic root of 22523245 is about 282.4079946817.

Adding to 22523245 its reverse (54232522), we get a palindrome (76755767).

The spelling of 22523245 in words is "twenty-two million, five hundred twenty-three thousand, two hundred forty-five".