45223020332521 has 16 divisors (see below), whose sum is σ = 47239762166784. Its totient is φ = 43210513100304.

The previous prime is 45223020332519. The next prime is 45223020332533. The reversal of 45223020332521 is 12523302032254.

It is a cyclic number.

It is not a de Polignac number, because 45223020332521 - 2¹ = 45223020332519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45223020332621) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 82164180 + ... + 82712746.

It is an arithmetic number, because the mean of its divisors is an integer number (2952485135424).

Almost surely, 2^{45223020332521} is an apocalyptic number.

It is an amenable number.

45223020332521 is a deficient number, since it is larger than the sum of its proper divisors (2016741834263).

45223020332521 is a wasteful number, since it uses less digits than its factorization.

45223020332521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552420.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 45223020332521 its reverse (12523302032254), we get a palindrome (57746322364775).

The spelling of 45223020332521 in words is "forty-five trillion, two hundred twenty-three billion, twenty million, three hundred thirty-two thousand, five hundred twenty-one".