45532185509 has 4 divisors (see below), whose sum is σ = 45709353804. Its totient is φ = 45355017216.

The previous prime is 45532185431. The next prime is 45532185511. The reversal of 45532185509 is 90558123554.

45532185509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28636085284 + 16896100225 = 169222^2 + 129985^2 .

It is a cyclic number.

It is not a de Polignac number, because 45532185509 - 2¹² = 45532181413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45532155509) 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, 88583762 + ... + 88584275.

It is an arithmetic number, because the mean of its divisors is an integer number (11427338451).

Almost surely, 2^45532185509 is an apocalyptic number.

It is an amenable number.

45532185509 is a deficient number, since it is larger than the sum of its proper divisors (177168295).

45532185509 is a wasteful number, since it uses less digits than its factorization.

45532185509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177168294.

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 45532185509 in words is "forty-five billion, five hundred thirty-two million, one hundred eighty-five thousand, five hundred nine".