542503 has 8 divisors (see below), whose sum is σ = 604800. Its totient is φ = 483168.

The previous prime is 542497. The next prime is 542519. The reversal of 542503 is 305245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542503 - 2⁹ = 541991 is a prime.

It is a Duffinian number.

542503 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542533) 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, 343 + ... + 1096.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2⁵⁴²⁵⁰³ is an apocalyptic number.

542503 is a deficient number, since it is larger than the sum of its proper divisors (62297).

542503 is a wasteful number, since it uses less digits than its factorization.

542503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481.

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

The square root of 542503 is about 736.5480296627. The cubic root of 542503 is about 81.5581528831.

Adding to 542503 its reverse (305245), we get a palindrome (847748).

The spelling of 542503 in words is "five hundred forty-two thousand, five hundred three".