45223312545 has 24 divisors (see below), whose sum is σ = 78392783976. Its totient is φ = 24117343488.

The previous prime is 45223312513. The next prime is 45223312577. The reversal of 45223312545 is 54521332254.

45223312545 is a `hidden beast` number, since 4 + 522 + 3 + 3 + 125 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (45223312513) and next prime (45223312577).

It can be written as a sum of positive squares in 4 ways, for example, as 11703561489 + 33519751056 = 108183^2 + 183084^2 .

It is not a de Polignac number, because 45223312545 - 2⁵ = 45223312513 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 796647 + ... + 851523.

It is an arithmetic number, because the mean of its divisors is an integer number (3266365999).

Almost surely, 2^45223312545 is an apocalyptic number.

45223312545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45223312545 is a deficient number, since it is larger than the sum of its proper divisors (33169471431).

45223312545 is a wasteful number, since it uses less digits than its factorization.

45223312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73201 (or 73198 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

Adding to 45223312545 its reverse (54521332254), we get a palindrome (99744644799).

The spelling of 45223312545 in words is "forty-five billion, two hundred twenty-three million, three hundred twelve thousand, five hundred forty-five".