22543540223 has 8 divisors (see below), whose sum is σ = 23738342400. Its totient is φ = 21349568088.

The previous prime is 22543540157. The next prime is 22543540231. The reversal of 22543540223 is 32204534522.

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 22543540223 - 2³⁴ = 5363671039 is a prime.

It is a super-2 number, since 2×22543540223² (a number of 22 digits) contains 22 as substring.

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 22543540223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22543543223) 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, 151361 + ... + 260762.

It is an arithmetic number, because the mean of its divisors is an integer number (2967292800).

Almost surely, 2^22543540223 is an apocalyptic number.

22543540223 is a deficient number, since it is larger than the sum of its proper divisors (1194802177).

22543540223 is a wasteful number, since it uses less digits than its factorization.

22543540223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415021.

The product of its (nonzero) digits is 57600, while the sum is 32.

The spelling of 22543540223 in words is "twenty-two billion, five hundred forty-three million, five hundred forty thousand, two hundred twenty-three".