542573 has 4 divisors (see below), whose sum is σ = 544860. Its totient is φ = 540288.

The previous prime is 542567. The next prime is 542579. The reversal of 542573 is 375245.

542573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (542567) and next prime (542579).

It can be written as a sum of positive squares in 2 ways, for example, as 232324 + 310249 = 482^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 542573 - 2⁴ = 542557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740 + ... + 1277.

It is an arithmetic number, because the mean of its divisors is an integer number (136215).

2⁵⁴²⁵⁷³ is an apocalyptic number.

It is an amenable number.

542573 is a deficient number, since it is larger than the sum of its proper divisors (2287).

542573 is a wasteful number, since it uses less digits than its factorization.

542573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its digits is 4200, while the sum is 26.

The square root of 542573 is about 736.5955470949. The cubic root of 542573 is about 81.5616605904.

The spelling of 542573 in words is "five hundred forty-two thousand, five hundred seventy-three".