45530 has 16 divisors (see below), whose sum is σ = 85320. Its totient is φ = 17472.

The previous prime is 45523. The next prime is 45533. The reversal of 45530 is 3554.

45530 = 56² + 57² + ... + 67².

45530 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 4 ways, for example, as 32761 + 12769 = 181^2 + 113^2 .

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 45499 and 45508.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 45530.

It is not an unprimeable number, because it can be changed into a prime (45533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 368.

2⁴⁵⁵³⁰ is an apocalyptic number.

45530 is a deficient number, since it is larger than the sum of its proper divisors (39790).

45530 is a wasteful number, since it uses less digits than its factorization.

45530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 45530 is about 213.3775995741. The cubic root of 45530 is about 35.7080293803.

It can be divided in two parts, 45 and 530, that added together give a palindrome (575).

The spelling of 45530 in words is "forty-five thousand, five hundred thirty".