52545 has 16 divisors (see below), whose sum is σ = 87552. Its totient is φ = 26880.

The previous prime is 52543. The next prime is 52553. The reversal of 52545 is 54525.

It is not a de Polignac number, because 52545 - 2¹ = 52543 is a prime.

It is a super-3 number, since 3×52545³ = 435226613335875, which contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

52545 is a lucky number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (52541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409 + ... + 521.

It is an arithmetic number, because the mean of its divisors is an integer number (5472).

2⁵²⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

52545 is a deficient number, since it is larger than the sum of its proper divisors (35007).

52545 is a wasteful number, since it uses less digits than its factorization.

52545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152.

The product of its digits is 1000, while the sum is 21.

The square root of 52545 is about 229.2269617650. The cubic root of 52545 is about 37.4550572700.

The spelling of 52545 in words is "fifty-two thousand, five hundred forty-five".