45550665 has 24 divisors (see below), whose sum is σ = 79567488. Its totient is φ = 24105120.

The previous prime is 45550627. The next prime is 45550669. The reversal of 45550665 is 56605554.

It is a happy number.

45550665 is a `hidden beast` number, since 45 + 550 + 6 + 65 = 666.

It is not a de Polignac number, because 45550665 - 2⁸ = 45550409 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45550669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2032 + ... + 9758.

It is an arithmetic number, because the mean of its divisors is an integer number (3315312).

Almost surely, 2^45550665 is an apocalyptic number.

45550665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45550665 is a deficient number, since it is larger than the sum of its proper divisors (34016823).

45550665 is a wasteful number, since it uses less digits than its factorization.

45550665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7869 (or 7866 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 45550665 is about 6749.1232763967. The cubic root of 45550665 is about 357.1343090906.

The spelling of 45550665 in words is "forty-five million, five hundred fifty thousand, six hundred sixty-five".