542057 has 4 divisors (see below), whose sum is σ = 547140. Its totient is φ = 536976.

The previous prime is 542053. The next prime is 542063. The reversal of 542057 is 750245.

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 364816 + 177241 = 604^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 542057 - 2² = 542053 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542057.

It is not an unprimeable number, because it can be changed into a prime (542053) 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, 2378 + ... + 2595.

It is an arithmetic number, because the mean of its divisors is an integer number (136785).

2⁵⁴²⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

542057 is a deficient number, since it is larger than the sum of its proper divisors (5083).

542057 is a wasteful number, since it uses less digits than its factorization.

542057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5082.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 542057 is about 736.2452037195. The cubic root of 542057 is about 81.5357966879.

The spelling of 542057 in words is "five hundred forty-two thousand, fifty-seven".