45645565 has 16 divisors (see below), whose sum is σ = 64759680. Its totient is φ = 30219840.

The previous prime is 45645563. The next prime is 45645577. The reversal of 45645565 is 56554654.

It is not a de Polignac number, because 45645565 - 2¹ = 45645563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45645563) 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, 21471 + ... + 23500.

It is an arithmetic number, because the mean of its divisors is an integer number (4047480).

Almost surely, 2^45645565 is an apocalyptic number.

It is an amenable number.

45645565 is a deficient number, since it is larger than the sum of its proper divisors (19114115).

45645565 is a wasteful number, since it uses less digits than its factorization.

45645565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45012.

The product of its digits is 360000, while the sum is 40.

The square root of 45645565 is about 6756.1501611495. The cubic root of 45645565 is about 357.3821542561.

The spelling of 45645565 in words is "forty-five million, six hundred forty-five thousand, five hundred sixty-five".