501365 has 8 divisors (see below), whose sum is σ = 605880. Its totient is φ = 398272.

The previous prime is 501343. The next prime is 501367. The reversal of 501365 is 563105.

It can be written as a sum of positive squares in 4 ways, for example, as 264196 + 237169 = 514^2 + 487^2 .

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 501365 - 2¹⁰ = 500341 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 501365.

It is not an unprimeable number, because it can be changed into a prime (501367) 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, 731 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (75735).

2⁵⁰¹³⁶⁵ is an apocalyptic number.

It is an amenable number.

501365 is a deficient number, since it is larger than the sum of its proper divisors (104515).

501365 is a wasteful number, since it uses less digits than its factorization.

501365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 501365 is about 708.0713240910. The cubic root of 501365 is about 79.4422137194.

The spelling of 501365 in words is "five hundred one thousand, three hundred sixty-five".