45523 has 2 divisors, whose sum is σ = 45524. Its totient is φ = 45522.

The previous prime is 45503. The next prime is 45533. The reversal of 45523 is 32554.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45523 - 2⁵ = 45491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45523.

It is not a weakly prime, because it can be changed into another prime (45503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22761 + 22762.

It is an arithmetic number, because the mean of its divisors is an integer number (22762).

2⁴⁵⁵²³ is an apocalyptic number.

45523 is a deficient number, since it is larger than the sum of its proper divisors (1).

45523 is an equidigital number, since it uses as much as digits as its factorization.

45523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 19.

The square root of 45523 is about 213.3611960971. The cubic root of 45523 is about 35.7061993121.

The spelling of 45523 in words is "forty-five thousand, five hundred twenty-three".