22540353245 has 4 divisors (see below), whose sum is σ = 27048423900. Its totient is φ = 18032282592.

The previous prime is 22540353229. The next prime is 22540353247. The reversal of 22540353245 is 54235304522.

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 17156022361 + 5384330884 = 130981^2 + 73378^2 .

It is a cyclic number.

It is not a de Polignac number, because 22540353245 - 2⁴ = 22540353229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540353247) 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, 2254035320 + ... + 2254035329.

It is an arithmetic number, because the mean of its divisors is an integer number (6762105975).

Almost surely, 2^22540353245 is an apocalyptic number.

It is an amenable number.

22540353245 is a deficient number, since it is larger than the sum of its proper divisors (4508070655).

22540353245 is an equidigital number, since it uses as much as digits as its factorization.

22540353245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508070654.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 22540353245 its reverse (54235304522), we get a palindrome (76775657767).

The spelling of 22540353245 in words is "twenty-two billion, five hundred forty million, three hundred fifty-three thousand, two hundred forty-five".