22532445 has 64 divisors (see below), whose sum is σ = 44432640. Its totient is φ = 10761984.

The previous prime is 22532441. The next prime is 22532491. The reversal of 22532445 is 54423522.

It is a happy number.

It is not a de Polignac number, because 22532445 - 2² = 22532441 is a prime.

It is a super-2 number, since 2×22532445² = 1015422155356050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64762 + ... + 65108.

It is an arithmetic number, because the mean of its divisors is an integer number (694260).

Almost surely, 2^22532445 is an apocalyptic number.

It is an amenable number.

22532445 is a deficient number, since it is larger than the sum of its proper divisors (21900195).

22532445 is a wasteful number, since it uses less digits than its factorization.

22532445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 405 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 22532445 is about 4746.8352615190. The cubic root of 22532445 is about 282.4464408867.

Adding to 22532445 its reverse (54423522), we get a palindrome (76955967).

The spelling of 22532445 in words is "twenty-two million, five hundred thirty-two thousand, four hundred forty-five".