22542235525105 has 4 divisors (see below), whose sum is σ = 27050682630132. Its totient is φ = 18033788420080.

The previous prime is 22542235525093. The next prime is 22542235525109. The reversal of 22542235525105 is 50152553224522.

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 10621837101456 + 11920398423649 = 3259116^2 + 3452593^2 .

It is not a de Polignac number, because 22542235525105 - 2¹¹ = 22542235523057 is a prime.

It is a super-2 number, since 2×22542235525105² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22542235525109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254223552506 + ... + 2254223552515.

It is an arithmetic number, because the mean of its divisors is an integer number (6762670657533).

Almost surely, 2^{22542235525105} is an apocalyptic number.

It is an amenable number.

22542235525105 is a deficient number, since it is larger than the sum of its proper divisors (4508447105027).

22542235525105 is an equidigital number, since it uses as much as digits as its factorization.

22542235525105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508447105026.

The product of its (nonzero) digits is 1200000, while the sum is 43.

Adding to 22542235525105 its reverse (50152553224522), we get a palindrome (72694788749627).

The spelling of 22542235525105 in words is "twenty-two trillion, five hundred forty-two billion, two hundred thirty-five million, five hundred twenty-five thousand, one hundred five".