542505199 has 4 divisors (see below), whose sum is σ = 542554200. Its totient is φ = 542456200.

The previous prime is 542505193. The next prime is 542505221. The reversal of 542505199 is 991505245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 542505199 - 2⁵ = 542505167 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542505193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852 + ... + 32950.

It is an arithmetic number, because the mean of its divisors is an integer number (135638550).

Almost surely, 2^542505199 is an apocalyptic number.

542505199 is a deficient number, since it is larger than the sum of its proper divisors (49001).

542505199 is a wasteful number, since it uses less digits than its factorization.

542505199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49000.

The product of its (nonzero) digits is 81000, while the sum is 40.

The square root of 542505199 is about 23291.7410040555. The cubic root of 542505199 is about 815.5826307982.

The spelling of 542505199 in words is "five hundred forty-two million, five hundred five thousand, one hundred ninety-nine".