22052454409 has 4 divisors (see below), whose sum is σ = 22071581716. Its totient is φ = 22033327104.

The previous prime is 22052454373. The next prime is 22052454419. The reversal of 22052454409 is 90445425022.

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 14725094409 + 7327360000 = 121347^2 + 85600^2 .

It is a cyclic number.

It is not a de Polignac number, because 22052454409 - 2⁹ = 22052453897 is a prime.

It is a super-2 number, since 2×22052454409² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22052454419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9561924 + ... + 9564229.

It is an arithmetic number, because the mean of its divisors is an integer number (5517895429).

Almost surely, 2^22052454409 is an apocalyptic number.

It is an amenable number.

22052454409 is a deficient number, since it is larger than the sum of its proper divisors (19127307).

22052454409 is a wasteful number, since it uses less digits than its factorization.

22052454409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19127306.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 22052454409 in words is "twenty-two billion, fifty-two million, four hundred fifty-four thousand, four hundred nine".