506193087 has 4 divisors (see below), whose sum is σ = 674924120. Its totient is φ = 337462056.

The previous prime is 506193059. The next prime is 506193091. The reversal of 506193087 is 780391605.

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

It is a de Polignac number, because none of the positive numbers 2^k-506193087 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 (506193047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84365512 + ... + 84365517.

It is an arithmetic number, because the mean of its divisors is an integer number (168731030).

Almost surely, 2^506193087 is an apocalyptic number.

506193087 is a deficient number, since it is larger than the sum of its proper divisors (168731033).

506193087 is a wasteful number, since it uses less digits than its factorization.

506193087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168731032.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 506193087 is about 22498.7352311191. The cubic root of 506193087 is about 796.9640595518.

The spelling of 506193087 in words is "five hundred six million, one hundred ninety-three thousand, eighty-seven".