542443211 has 4 divisors (see below), whose sum is σ = 545473800. Its totient is φ = 539412624.

The previous prime is 542443207. The next prime is 542443261. The reversal of 542443211 is 112344245.

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

It is a cyclic number.

It is not a de Polignac number, because 542443211 - 2² = 542443207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542443261) 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, 1515026 + ... + 1515383.

It is an arithmetic number, because the mean of its divisors is an integer number (136368450).

Almost surely, 2^542443211 is an apocalyptic number.

542443211 is a deficient number, since it is larger than the sum of its proper divisors (3030589).

542443211 is a wasteful number, since it uses less digits than its factorization.

542443211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030588.

The product of its digits is 3840, while the sum is 26.

The square root of 542443211 is about 23290.4102797697. The cubic root of 542443211 is about 815.5515661117.

Adding to 542443211 its reverse (112344245), we get a palindrome (654787456).

The spelling of 542443211 in words is "five hundred forty-two million, four hundred forty-three thousand, two hundred eleven".