45535534321 has 4 divisors (see below), whose sum is σ = 45590998644. Its totient is φ = 45480070000.

The previous prime is 45535534307. The next prime is 45535534327. The reversal of 45535534321 is 12343553554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12343553554 = 2 ⋅6171776777.

It can be written as a sum of positive squares in 2 ways, for example, as 10392783025 + 35142751296 = 101945^2 + 187464^2 .

It is a cyclic number.

It is not a de Polignac number, because 45535534321 - 2¹⁵ = 45535501553 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45535534327) 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, 27730930 + ... + 27732571.

It is an arithmetic number, because the mean of its divisors is an integer number (11397749661).

Almost surely, 2^45535534321 is an apocalyptic number.

It is an amenable number.

45535534321 is a deficient number, since it is larger than the sum of its proper divisors (55464323).

45535534321 is an equidigital number, since it uses as much as digits as its factorization.

45535534321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55464322.

The product of its digits is 540000, while the sum is 40.

The spelling of 45535534321 in words is "forty-five billion, five hundred thirty-five million, five hundred thirty-four thousand, three hundred twenty-one".