45543665 has 16 divisors (see below), whose sum is σ = 58872000. Its totient is φ = 33711552.

The previous prime is 45543653. The next prime is 45543683. The reversal of 45543665 is 56634554.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45543665 - 2⁴ = 45543649 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490 + ... + 9659.

It is an arithmetic number, because the mean of its divisors is an integer number (3679500).

Almost surely, 2^45543665 is an apocalyptic number.

It is an amenable number.

45543665 is a deficient number, since it is larger than the sum of its proper divisors (13328335).

45543665 is a wasteful number, since it uses less digits than its factorization.

45543665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11216.

The product of its digits is 216000, while the sum is 38.

The square root of 45543665 is about 6748.6046705967. The cubic root of 45543665 is about 357.1160139444.

The spelling of 45543665 in words is "forty-five million, five hundred forty-three thousand, six hundred sixty-five".