542011 has 4 divisors (see below), whose sum is σ = 573912. Its totient is φ = 510112.

The previous prime is 541999. The next prime is 542021. The reversal of 542011 is 110245.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542011 is a prime.

It is a Duffinian number.

542011 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 541982 and 542000.

It is not an unprimeable number, because it can be changed into a prime (542021) 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, 15925 + ... + 15958.

It is an arithmetic number, because the mean of its divisors is an integer number (143478).

2⁵⁴²⁰¹¹ is an apocalyptic number.

542011 is a deficient number, since it is larger than the sum of its proper divisors (31901).

542011 is a wasteful number, since it uses less digits than its factorization.

542011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31900.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 542011 is about 736.2139634644. The cubic root of 542011 is about 81.5334901945.

Adding to 542011 its reverse (110245), we get a palindrome (652256).

The spelling of 542011 in words is "five hundred forty-two thousand, eleven".