22532643 has 12 divisors (see below), whose sum is σ = 37196848. Its totient is φ = 12875760.

The previous prime is 22532641. The next prime is 22532647. The reversal of 22532643 is 34623522.

It is not a de Polignac number, because 22532643 - 2¹ = 22532641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22532641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178768 + ... + 178893.

Almost surely, 2^22532643 is an apocalyptic number.

22532643 is a deficient number, since it is larger than the sum of its proper divisors (14664205).

22532643 is a wasteful number, since it uses less digits than its factorization.

22532643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357674 (or 357671 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 22532643 is about 4746.8561174740. The cubic root of 22532643 is about 282.4472682008.

The spelling of 22532643 in words is "twenty-two million, five hundred thirty-two thousand, six hundred forty-three".