22540432105 has 4 divisors (see below), whose sum is σ = 27048518532. Its totient is φ = 18032345680.

The previous prime is 22540432087. The next prime is 22540432177. The reversal of 22540432105 is 50123404522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7494711184 + 15045720921 = 86572^2 + 122661^2 .

It is not a de Polignac number, because 22540432105 - 2¹⁵ = 22540399337 is a prime.

It is a super-2 number, since 2×22540432105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254043206 + ... + 2254043215.

It is an arithmetic number, because the mean of its divisors is an integer number (6762129633).

Almost surely, 2^22540432105 is an apocalyptic number.

It is an amenable number.

22540432105 is a deficient number, since it is larger than the sum of its proper divisors (4508086427).

22540432105 is an equidigital number, since it uses as much as digits as its factorization.

22540432105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508086426.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22540432105 its reverse (50123404522), we get a palindrome (72663836627).

The spelling of 22540432105 in words is "twenty-two billion, five hundred forty million, four hundred thirty-two thousand, one hundred five".