542500 has 60 divisors (see below), whose sum is σ = 1399552. Its totient is φ = 180000.

The previous prime is 542497. The next prime is 542519. The reversal of 542500 is 5245.

It is a happy number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 17485 + ... + 17515.

2⁵⁴²⁵⁰⁰ is an apocalyptic number.

542500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699776).

542500 is an abundant number, since it is smaller than the sum of its proper divisors (857052).

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

542500 is a wasteful number, since it uses less digits than its factorization.

542500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 542500 is about 736.5459931328. The cubic root of 542500 is about 81.5580025461.

Adding to 542500 its reverse (5245), we get a palindrome (547745).

The spelling of 542500 in words is "five hundred forty-two thousand, five hundred".