542473 has 4 divisors (see below), whose sum is σ = 551428. Its totient is φ = 533520.

The previous prime is 542467. The next prime is 542483. The reversal of 542473 is 374245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41209 + 501264 = 203^2 + 708^2 .

It is a cyclic number.

It is not a de Polignac number, because 542473 - 2⁵ = 542441 is a prime.

It is a super-5 number, since 5×542473⁵ (a number of 30 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542483) 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 3 ways as a sum of consecutive naturals, for example, 4386 + ... + 4507.

It is an arithmetic number, because the mean of its divisors is an integer number (137857).

2⁵⁴²⁴⁷³ is an apocalyptic number.

It is an amenable number.

542473 is a deficient number, since it is larger than the sum of its proper divisors (8955).

542473 is an equidigital number, since it uses as much as digits as its factorization.

542473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8954.

The product of its digits is 3360, while the sum is 25.

The square root of 542473 is about 736.5276641105. The cubic root of 542473 is about 81.5566494876.

The spelling of 542473 in words is "five hundred forty-two thousand, four hundred seventy-three".