542666215 has 16 divisors (see below), whose sum is σ = 801476928. Its totient is φ = 343489536.

The previous prime is 542666153. The next prime is 542666237. The reversal of 542666215 is 512666245.

542666215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 542666215 - 2¹³ = 542658023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595882 + ... + 596791.

It is an arithmetic number, because the mean of its divisors is an integer number (50092308).

Almost surely, 2^542666215 is an apocalyptic number.

542666215 is a deficient number, since it is larger than the sum of its proper divisors (258810713).

542666215 is a wasteful number, since it uses less digits than its factorization.

542666215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192698.

The product of its digits is 86400, while the sum is 37.

The square root of 542666215 is about 23295.1972517942. The cubic root of 542666215 is about 815.6633113540.

The spelling of 542666215 in words is "five hundred forty-two million, six hundred sixty-six thousand, two hundred fifteen".