20027609522 has 6 divisors (see below), whose sum is σ = 30041714493. Its totient is φ = 10013704692.

The previous prime is 20027609507. The next prime is 20027609557. The reversal of 20027609522 is 22590672002.

It can be written as a sum of positive squares in 2 ways, for example, as 17211078481 + 2816531041 = 131191^2 + 53071^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=100069.

It is a super-2 number, since 2×20027609522² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 150104 + ... + 250172.

Almost surely, 2^20027609522 is an apocalyptic number.

20027609522 is a deficient number, since it is larger than the sum of its proper divisors (10014104971).

20027609522 is an frugal number, since it uses more digits than its factorization.

20027609522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200140 (or 100071 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 20027609522 in words is "twenty billion, twenty-seven million, six hundred nine thousand, five hundred twenty-two".