22540520213 has 8 divisors (see below), whose sum is σ = 23208050232. Its totient is φ = 21876060096.

The previous prime is 22540520161. The next prime is 22540520221. The reversal of 22540520213 is 31202504522.

It can be written as a sum of positive squares in 4 ways, for example, as 6467858929 + 16072661284 = 80423^2 + 126778^2 .

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 22540520213 - 2¹⁰ = 22540519189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540520243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752570 + ... + 781947.

It is an arithmetic number, because the mean of its divisors is an integer number (2901006279).

Almost surely, 2^22540520213 is an apocalyptic number.

It is an amenable number.

22540520213 is a deficient number, since it is larger than the sum of its proper divisors (667530019).

22540520213 is a wasteful number, since it uses less digits than its factorization.

22540520213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534951.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 22540520213 in words is "twenty-two billion, five hundred forty million, five hundred twenty thousand, two hundred thirteen".