542804685 has 16 divisors (see below), whose sum is σ = 869760960. Its totient is φ = 289071360.

The previous prime is 542804651. The next prime is 542804693. The reversal of 542804685 is 586408245.

It is not a de Polignac number, because 542804685 - 2⁹ = 542804173 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 15820 + ... + 36549.

It is an arithmetic number, because the mean of its divisors is an integer number (54360060).

Almost surely, 2^542804685 is an apocalyptic number.

It is an amenable number.

542804685 is a deficient number, since it is larger than the sum of its proper divisors (326956275).

542804685 is a wasteful number, since it uses less digits than its factorization.

542804685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53068.

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 542804685 is about 23298.1691340758. The cubic root of 542804685 is about 815.7326819851.

The spelling of 542804685 in words is "five hundred forty-two million, eight hundred four thousand, six hundred eighty-five".