545252 has 12 divisors (see below), whose sum is σ = 959616. Its totient is φ = 271080.

The previous prime is 545239. The next prime is 545257. The reversal of 545252 is 252545.

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

It is not an unprimeable number, because it can be changed into a prime (545257) by changing a digit.

545252 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (79968).

2⁵⁴⁵²⁵² is an apocalyptic number.

It is an amenable number.

545252 is a deficient number, since it is larger than the sum of its proper divisors (414364).

545252 is a wasteful number, since it uses less digits than its factorization.

545252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 776 counting only the distinct ones).

The product of its digits is 2000, while the sum is 23.

The square root of 545252 is about 738.4118092230. The cubic root of 545252 is about 81.6956794506.

Adding to 545252 its reverse (252545), we get a palindrome (797797).

It can be divided in two parts, 545 and 252, that added together give a palindrome (797).

The spelling of 545252 in words is "five hundred forty-five thousand, two hundred fifty-two".