542259566 has 16 divisors (see below), whose sum is σ = 822309840. Its totient is φ = 268170240.

The previous prime is 542259559. The next prime is 542259583. The reversal of 542259566 is 665952245.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79790 + ... + 86318.

It is an arithmetic number, because the mean of its divisors is an integer number (51394365).

Almost surely, 2^542259566 is an apocalyptic number.

542259566 is a deficient number, since it is larger than the sum of its proper divisors (280050274).

542259566 is a wasteful number, since it uses less digits than its factorization.

542259566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979.

The product of its digits is 648000, while the sum is 44.

The square root of 542259566 is about 23286.4674435604. The cubic root of 542259566 is about 815.4595203028.

The spelling of 542259566 in words is "five hundred forty-two million, two hundred fifty-nine thousand, five hundred sixty-six".