542804571 has 20 divisors (see below), whose sum is σ = 838820400. Its totient is φ = 349389936.

The previous prime is 542804519. The next prime is 542804573. The reversal of 542804571 is 175408245.

542804571 is a `hidden beast` number, since 5 + 4 + 2 + 80 + 4 + 571 = 666.

It is not a de Polignac number, because 542804571 - 2²⁵ = 509250139 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (542804573) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 113191 + ... + 117888.

It is an arithmetic number, because the mean of its divisors is an integer number (41941020).

Almost surely, 2^542804571 is an apocalyptic number.

542804571 is a deficient number, since it is larger than the sum of its proper divisors (296015829).

542804571 is a wasteful number, since it uses less digits than its factorization.

542804571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231120 (or 231111 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 542804571 is about 23298.1666875314. The cubic root of 542804571 is about 815.7326248783.

The spelling of 542804571 in words is "five hundred forty-two million, eight hundred four thousand, five hundred seventy-one".