542796805 has 8 divisors (see below), whose sum is σ = 651627000. Its totient is φ = 434056896.

The previous prime is 542796781. The next prime is 542796811. The reversal of 542796805 is 508697245.

It is a Cunningham number, because it is equal to 23298²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 69255684 + 473541121 = 8322^2 + 21761^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 542796805 - 2¹⁷ = 542665733 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8550 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (81453375).

Almost surely, 2^542796805 is an apocalyptic number.

It is an amenable number.

542796805 is a deficient number, since it is larger than the sum of its proper divisors (108830195).

542796805 is a wasteful number, since it uses less digits than its factorization.

542796805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45143.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 542796805 is about 23298.0000214611. Note that the first 4 decimals coincide. The cubic root of 542796805 is about 815.7287345833.

The spelling of 542796805 in words is "five hundred forty-two million, seven hundred ninety-six thousand, eight hundred five".