542543051 has 4 divisors (see below), whose sum is σ = 545679312. Its totient is φ = 539406792.

The previous prime is 542543039. The next prime is 542543069. The reversal of 542543051 is 150345245.

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-542543051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542543011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567871 + ... + 1568216.

It is an arithmetic number, because the mean of its divisors is an integer number (136419828).

Almost surely, 2^542543051 is an apocalyptic number.

542543051 is a deficient number, since it is larger than the sum of its proper divisors (3136261).

542543051 is a wasteful number, since it uses less digits than its factorization.

542543051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136260.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 542543051 is about 23292.5535525841. The cubic root of 542543051 is about 815.6015987982.

Adding to 542543051 its reverse (150345245), we get a palindrome (692888296).

The spelling of 542543051 in words is "five hundred forty-two million, five hundred forty-three thousand, fifty-one".