542566218 has 8 divisors (see below), whose sum is σ = 1085132448. Its totient is φ = 180855404.

The previous prime is 542566207. The next prime is 542566253. The reversal of 542566218 is 812665245.

It is a sphenic number, since it is the product of 3 distinct primes.

542566218 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45213846 + ... + 45213857.

It is an arithmetic number, because the mean of its divisors is an integer number (135641556).

Almost surely, 2^542566218 is an apocalyptic number.

542566218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542566218 is a wasteful number, since it uses less digits than its factorization.

542566218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90427708.

The product of its digits is 115200, while the sum is 39.

The square root of 542566218 is about 23293.0508521318. The cubic root of 542566218 is about 815.6132075687.

The spelling of 542566218 in words is "five hundred forty-two million, five hundred sixty-six thousand, two hundred eighteen".