45305589 has 16 divisors (see below), whose sum is σ = 69345920. Its totient is φ = 25773120.

The previous prime is 45305573. The next prime is 45305593. The reversal of 45305589 is 98550354.

It is not a de Polignac number, because 45305589 - 2⁴ = 45305573 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45305549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99 + ... + 9519.

It is an arithmetic number, because the mean of its divisors is an integer number (4334120).

Almost surely, 2^45305589 is an apocalyptic number.

It is an amenable number.

45305589 is a deficient number, since it is larger than the sum of its proper divisors (24040331).

45305589 is a wasteful number, since it uses less digits than its factorization.

45305589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 45305589 is about 6730.9426531504. The cubic root of 45305589 is about 356.4926610196.

The spelling of 45305589 in words is "forty-five million, three hundred five thousand, five hundred eighty-nine".