22543352001 has 8 divisors (see below), whose sum is σ = 33397558560. Its totient is φ = 15028901316.

The previous prime is 22543351969. The next prime is 22543352003. The reversal of 22543352001 is 10025334522.

It is a happy number.

22543352001 is a `hidden beast` number, since 2 + 25 + 433 + 5 + 200 + 1 = 666.

It is not a de Polignac number, because 22543352001 - 2⁵ = 22543351969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 834938963 = 22543352001 / (2 + 2 + 5 + 4 + 3 + 3 + 5 + 2 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (22543352003) 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, 417469455 + ... + 417469508.

It is an arithmetic number, because the mean of its divisors is an integer number (4174694820).

Almost surely, 2^22543352001 is an apocalyptic number.

It is an amenable number.

22543352001 is a deficient number, since it is larger than the sum of its proper divisors (10854206559).

22543352001 is an equidigital number, since it uses as much as digits as its factorization.

22543352001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834938972 (or 834938966 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 22543352001 its reverse (10025334522), we get a palindrome (32568686523).

It can be divided in two parts, 22543 and 352001, that added together give a square (374544 = 612²).

The spelling of 22543352001 in words is "twenty-two billion, five hundred forty-three million, three hundred fifty-two thousand, one".