20522345005 has 16 divisors (see below), whose sum is σ = 26098190064. Its totient is φ = 15438643200.

The previous prime is 20522344993. The next prime is 20522345017. The reversal of 20522345005 is 50054322502.

It is an interprime number because it is at equal distance from previous prime (20522344993) and next prime (20522345017).

It can be written as a sum of positive squares in 8 ways, for example, as 10949481 + 20511395524 = 3309^2 + 143218^2 .

It is not a de Polignac number, because 20522345005 - 2¹¹ = 20522342957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6696 + ... + 202705.

It is an arithmetic number, because the mean of its divisors is an integer number (1631136879).

Almost surely, 2^20522345005 is an apocalyptic number.

It is an amenable number.

20522345005 is a deficient number, since it is larger than the sum of its proper divisors (5575845059).

20522345005 is a wasteful number, since it uses less digits than its factorization.

20522345005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210576.

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 20522345005 its reverse (50054322502), we get a palindrome (70576667507).

The spelling of 20522345005 in words is "twenty billion, five hundred twenty-two million, three hundred forty-five thousand, five".