500500381 has 4 divisors (see below), whose sum is σ = 505359712. Its totient is φ = 495641052.

The previous prime is 500500379. The next prime is 500500393. The reversal of 500500381 is 183005005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 500500381 - 2¹ = 500500379 is a prime.

It is a super-2 number, since 2×500500381² = 501001262762290322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500500331) 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, 2429511 + ... + 2429716.

It is an arithmetic number, because the mean of its divisors is an integer number (126339928).

Almost surely, 2^500500381 is an apocalyptic number.

It is an amenable number.

500500381 is a deficient number, since it is larger than the sum of its proper divisors (4859331).

500500381 is a wasteful number, since it uses less digits than its factorization.

500500381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859330.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 500500381 is about 22371.8658363580. The cubic root of 500500381 is about 793.9652061517.

Adding to 500500381 its reverse (183005005), we get a palindrome (683505386).

The spelling of 500500381 in words is "five hundred million, five hundred thousand, three hundred eighty-one".