506542 has 8 divisors (see below), whose sum is σ = 763776. Its totient is φ = 251952.

The previous prime is 506537. The next prime is 506551. The reversal of 506542 is 245605.

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

It is a congruent number.

It is an unprimeable number.

506542 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78 + ... + 1009.

It is an arithmetic number, because the mean of its divisors is an integer number (95472).

2⁵⁰⁶⁵⁴² is an apocalyptic number.

506542 is a deficient number, since it is larger than the sum of its proper divisors (257234).

506542 is a wasteful number, since it uses less digits than its factorization.

506542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 506542 is about 711.7176406413. The cubic root of 506542 is about 79.7147130177.

The spelling of 506542 in words is "five hundred six thousand, five hundred forty-two".