45665807 has 32 divisors (see below), whose sum is σ = 54665280. Its totient is φ = 37739520.

The previous prime is 45665779. The next prime is 45665813. The reversal of 45665807 is 70856654.

It is a cyclic number.

It is not a de Polignac number, because 45665807 - 2¹⁶ = 45600271 is a prime.

It is a super-2 number, since 2×45665807² = 4170731857922498, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45665827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 625523 + ... + 625595.

It is an arithmetic number, because the mean of its divisors is an integer number (1708290).

Almost surely, 2^45665807 is an apocalyptic number.

45665807 is a deficient number, since it is larger than the sum of its proper divisors (8999473).

45665807 is a wasteful number, since it uses less digits than its factorization.

45665807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 45665807 is about 6757.6480375941. The cubic root of 45665807 is about 357.4349747253.

The spelling of 45665807 in words is "forty-five million, six hundred sixty-five thousand, eight hundred seven".