22443252505313 has 8 divisors (see below), whose sum is σ = 22494376218216. Its totient is φ = 22392164361600.

The previous prime is 22443252505283. The next prime is 22443252505417. The reversal of 22443252505313 is 31350525234422.

It can be written as a sum of positive squares in 4 ways, for example, as 3140735372944 + 19302517132369 = 1772212^2 + 4393463^2 .

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 22443252505313 - 2⁸ = 22443252505057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22443252505013) 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, 7628708 + ... + 10153013.

It is an arithmetic number, because the mean of its divisors is an integer number (2811797027277).

Almost surely, 2^{22443252505313} is an apocalyptic number.

It is an amenable number.

22443252505313 is a deficient number, since it is larger than the sum of its proper divisors (51123712903).

22443252505313 is a wasteful number, since it uses less digits than its factorization.

22443252505313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17784595.

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 22443252505313 its reverse (31350525234422), we get a palindrome (53793777739735).

The spelling of 22443252505313 in words is "twenty-two trillion, four hundred forty-three billion, two hundred fifty-two million, five hundred five thousand, three hundred thirteen".