502542 has 12 divisors (see below), whose sum is σ = 1088880. Its totient is φ = 167508.

The previous prime is 502517. The next prime is 502543. The reversal of 502542 is 245205.

502542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 27919 = 502542 / (5 + 0 + 2 + 5 + 4 + 2).

It is a d-powerful number, because it can be written as 5⁷ + 0 + 5⁸ + 2¹⁴ + 4⁵ + 2¹⁴ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 502542.

It is not an unprimeable number, because it can be changed into a prime (502543) by changing a digit.

502542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13942 + ... + 13977.

It is an arithmetic number, because the mean of its divisors is an integer number (90740).

2⁵⁰²⁵⁴² is an apocalyptic number.

502542 is an abundant number, since it is smaller than the sum of its proper divisors (586338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

502542 is a wasteful number, since it uses less digits than its factorization.

502542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27927 (or 27924 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 502542 is about 708.9019678348. The cubic root of 502542 is about 79.5043310801.

Adding to 502542 its reverse (245205), we get a palindrome (747747).

The spelling of 502542 in words is "five hundred two thousand, five hundred forty-two".