45517 has 4 divisors (see below), whose sum is σ = 47520. Its totient is φ = 43516.

The previous prime is 45503. The next prime is 45523. The reversal of 45517 is 71554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45517 - 2⁷ = 45389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967 + ... + 1012.

It is an arithmetic number, because the mean of its divisors is an integer number (11880).

2⁴⁵⁵¹⁷ is an apocalyptic number.

It is an amenable number.

45517 is a deficient number, since it is larger than the sum of its proper divisors (2003).

45517 is a wasteful number, since it uses less digits than its factorization.

45517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its digits is 700, while the sum is 22.

The square root of 45517 is about 213.3471349702. The cubic root of 45517 is about 35.7046305329.

The spelling of 45517 in words is "forty-five thousand, five hundred seventeen".