4545573523 has 4 divisors (see below), whose sum is σ = 4553062720. Its totient is φ = 4538084328.

The previous prime is 4545573517. The next prime is 4545573533. The reversal of 4545573523 is 3253755454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3253755454 = 2 ⋅1626877727.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4545573523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4545573523.

It is not an unprimeable number, because it can be changed into a prime (4545573503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3743688 + ... + 3744901.

It is an arithmetic number, because the mean of its divisors is an integer number (1138265680).

Almost surely, 2^4545573523 is an apocalyptic number.

4545573523 is a deficient number, since it is larger than the sum of its proper divisors (7489197).

4545573523 is an equidigital number, since it uses as much as digits as its factorization.

4545573523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7489196.

The product of its digits is 1260000, while the sum is 43.

The square root of 4545573523 is about 67420.8686016429. The cubic root of 4545573523 is about 1656.5182652626.

The spelling of 4545573523 in words is "four billion, five hundred forty-five million, five hundred seventy-three thousand, five hundred twenty-three".