500539381 has 8 divisors (see below), whose sum is σ = 530178264. Its totient is φ = 470922240.

The previous prime is 500539337. The next prime is 500539397. The reversal of 500539381 is 183935005.

It can be written as a sum of positive squares in 4 ways, for example, as 253892356 + 246647025 = 15934^2 + 15705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 500539381 - 2²³ = 492150773 is a prime.

It is a super-2 number, since 2×500539381² = 501079343863726322, 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 (500539301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87901 + ... + 93421.

It is an arithmetic number, because the mean of its divisors is an integer number (66272283).

Almost surely, 2^500539381 is an apocalyptic number.

It is an amenable number.

500539381 is a deficient number, since it is larger than the sum of its proper divisors (29638883).

500539381 is a wasteful number, since it uses less digits than its factorization.

500539381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10871.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 500539381 is about 22372.7374498518. The cubic root of 500539381 is about 793.9858280733.

The spelling of 500539381 in words is "five hundred million, five hundred thirty-nine thousand, three hundred eighty-one".