45322205521 has 4 divisors (see below), whose sum is σ = 45322687332. Its totient is φ = 45321723712.

The previous prime is 45322205507. The next prime is 45322205531. The reversal of 45322205521 is 12550222354.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 30402804496 + 14919401025 = 174364^2 + 122145^2 .

It is a cyclic number.

It is not a de Polignac number, because 45322205521 - 2²³ = 45313816913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45322205531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48676 + ... + 304981.

It is an arithmetic number, because the mean of its divisors is an integer number (11330671833).

Almost surely, 2^45322205521 is an apocalyptic number.

It is an amenable number.

45322205521 is a deficient number, since it is larger than the sum of its proper divisors (481811).

45322205521 is a wasteful number, since it uses less digits than its factorization.

45322205521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481810.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 45322205521 its reverse (12550222354), we get a palindrome (57872427875).

The spelling of 45322205521 in words is "forty-five billion, three hundred twenty-two million, two hundred five thousand, five hundred twenty-one".