22522401 has 16 divisors (see below), whose sum is σ = 36400320. Its totient is φ = 13649760.

The previous prime is 22522363. The next prime is 22522427. The reversal of 22522401 is 10422522.

It is not a de Polignac number, because 22522401 - 2¹⁰ = 22521377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22522001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37620 + ... + 38213.

It is an arithmetic number, because the mean of its divisors is an integer number (2275020).

Almost surely, 2^22522401 is an apocalyptic number.

It is an amenable number.

22522401 is a deficient number, since it is larger than the sum of its proper divisors (13877919).

22522401 is a wasteful number, since it uses less digits than its factorization.

22522401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75853 (or 75847 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22522401 is about 4745.7771755530. Note that the first 3 decimals coincide. The cubic root of 22522401 is about 282.4044671361.

Adding to 22522401 its reverse (10422522), we get a palindrome (32944923).

The spelling of 22522401 in words is "twenty-two million, five hundred twenty-two thousand, four hundred one".