542733805 has 4 divisors (see below), whose sum is σ = 651280572. Its totient is φ = 434187040.

The previous prime is 542733799. The next prime is 542733809. The reversal of 542733805 is 508337245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 218625796 + 324108009 = 14786^2 + 18003^2 .

It is not a de Polignac number, because 542733805 - 2⁹ = 542733293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542733809) 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, 54273376 + ... + 54273385.

It is an arithmetic number, because the mean of its divisors is an integer number (162820143).

Almost surely, 2^542733805 is an apocalyptic number.

It is an amenable number.

542733805 is a deficient number, since it is larger than the sum of its proper divisors (108546767).

542733805 is a wasteful number, since it uses less digits than its factorization.

542733805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108546766.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 542733805 is about 23296.6479348425. The cubic root of 542733805 is about 815.6971740323.

The spelling of 542733805 in words is "five hundred forty-two million, seven hundred thirty-three thousand, eight hundred five".