542564851 has 4 divisors (see below), whose sum is σ = 554108832. Its totient is φ = 531020872.

The previous prime is 542564833. The next prime is 542564873. The reversal of 542564851 is 158465245.

542564851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542564851 - 2¹⁵ = 542532083 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542564951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5771920 + ... + 5772013.

It is an arithmetic number, because the mean of its divisors is an integer number (138527208).

Almost surely, 2^542564851 is an apocalyptic number.

542564851 is a deficient number, since it is larger than the sum of its proper divisors (11543981).

542564851 is a wasteful number, since it uses less digits than its factorization.

542564851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543980.

The product of its digits is 192000, while the sum is 40.

The square root of 542564851 is about 23293.0215085978. The cubic root of 542564851 is about 815.6125225867.

The spelling of 542564851 in words is "five hundred forty-two million, five hundred sixty-four thousand, eight hundred fifty-one".