506500087 has 4 divisors (see below), whose sum is σ = 506786896. Its totient is φ = 506213280.

The previous prime is 506500039. The next prime is 506500117. The reversal of 506500087 is 780005605.

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

It is a cyclic number.

It is not a de Polignac number, because 506500087 - 2²³ = 498111479 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 (506500037) 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, 140739 + ... + 144292.

It is an arithmetic number, because the mean of its divisors is an integer number (126696724).

Almost surely, 2^506500087 is an apocalyptic number.

506500087 is a deficient number, since it is larger than the sum of its proper divisors (286809).

506500087 is a wasteful number, since it uses less digits than its factorization.

506500087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286808.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 506500087 is about 22505.5568027099. The cubic root of 506500087 is about 797.1251433533.

The spelling of 506500087 in words is "five hundred six million, five hundred thousand, eighty-seven".