501085 has 12 divisors (see below), whose sum is σ = 652212. Its totient is φ = 369408.

The previous prime is 501077. The next prime is 501089. The reversal of 501085 is 580105.

It can be written as a sum of positive squares in 6 ways, for example, as 77284 + 423801 = 278^2 + 651^2 .

It is not a de Polignac number, because 501085 - 2³ = 501077 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 549 + ... + 1141.

It is an arithmetic number, because the mean of its divisors is an integer number (54351).

2⁵⁰¹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

501085 is a deficient number, since it is larger than the sum of its proper divisors (151127).

501085 is a wasteful number, since it uses less digits than its factorization.

501085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 501085 is about 707.8735762832. The cubic root of 501085 is about 79.4274221258.

The spelling of 501085 in words is "five hundred one thousand, eighty-five".