500161505 has 8 divisors (see below), whose sum is σ = 635499432. Its totient is φ = 376592128.

The previous prime is 500161481. The next prime is 500161513. The reversal of 500161505 is 505161005.

It can be written as a sum of positive squares in 4 ways, for example, as 56806369 + 443355136 = 7537^2 + 21056^2 .

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 500161505 - 2²⁴ = 483384289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2942042 + ... + 2942211.

It is an arithmetic number, because the mean of its divisors is an integer number (79437429).

Almost surely, 2^500161505 is an apocalyptic number.

It is an amenable number.

500161505 is a deficient number, since it is larger than the sum of its proper divisors (135337927).

500161505 is a wasteful number, since it uses less digits than its factorization.

500161505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884275.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 500161505 is about 22364.2908450056. The cubic root of 500161505 is about 793.7859745201.

The spelling of 500161505 in words is "five hundred million, one hundred sixty-one thousand, five hundred five".