45571 has 4 divisors (see below), whose sum is σ = 46000. Its totient is φ = 45144.

The previous prime is 45569. The next prime is 45587. The reversal of 45571 is 17554.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45571 - 2¹ = 45569 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (45541) 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, 85 + ... + 313.

It is an arithmetic number, because the mean of its divisors is an integer number (11500).

2⁴⁵⁵⁷¹ is an apocalyptic number.

45571 is a deficient number, since it is larger than the sum of its proper divisors (429).

45571 is a wasteful number, since it uses less digits than its factorization.

45571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428.

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

The square root of 45571 is about 213.4736517700. The cubic root of 45571 is about 35.7187445862.

It can be divided in two parts, 45 and 571, that added together give a palindrome (616).

The spelling of 45571 in words is "forty-five thousand, five hundred seventy-one".