542555843 has 2 divisors, whose sum is σ = 542555844. Its totient is φ = 542555842.

The previous prime is 542555813. The next prime is 542555851. The reversal of 542555843 is 348555245.

542555843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542555843 - 2¹⁰ = 542554819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542555843.

It is not a weakly prime, because it can be changed into another prime (542555813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271277921 + 271277922.

It is an arithmetic number, because the mean of its divisors is an integer number (271277922).

Almost surely, 2^542555843 is an apocalyptic number.

542555843 is a deficient number, since it is larger than the sum of its proper divisors (1).

542555843 is an equidigital number, since it uses as much as digits as its factorization.

542555843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480000, while the sum is 41.

The square root of 542555843 is about 23292.8281451609. The cubic root of 542555843 is about 815.6080087925.

The spelling of 542555843 in words is "five hundred forty-two million, five hundred fifty-five thousand, eight hundred forty-three".