542250 has 48 divisors (see below), whose sum is σ = 1472328. Its totient is φ = 144000.

The previous prime is 542237. The next prime is 542251. The reversal of 542250 is 52245.

It can be written as a sum of positive squares in 4 ways, for example, as 227529 + 314721 = 477^2 + 561^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (542251) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2130 + ... + 2370.

2⁵⁴²²⁵⁰ is an apocalyptic number.

542250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 542250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736164).

542250 is an abundant number, since it is smaller than the sum of its proper divisors (930078).

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

542250 is a wasteful number, since it uses less digits than its factorization.

542250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 251 counting only the distinct ones).

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

The square root of 542250 is about 736.3762625180. The cubic root of 542250 is about 81.5454725101.

Adding to 542250 its reverse (52245), we get a palindrome (594495).

It can be divided in two parts, 54 and 2250, that added together give a square (2304 = 48²).

The spelling of 542250 in words is "five hundred forty-two thousand, two hundred fifty".