538065 has 24 divisors (see below), whose sum is σ = 1018368. Its totient is φ = 260640.

The previous prime is 538051. The next prime is 538073. The reversal of 538065 is 560835.

It is not a de Polignac number, because 538065 - 2⁴ = 538049 is a prime.

538065 is a lucky number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 538065.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49 + ... + 1038.

It is an arithmetic number, because the mean of its divisors is an integer number (42432).

2⁵³⁸⁰⁶⁵ is an apocalyptic number.

538065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

538065 is a deficient number, since it is larger than the sum of its proper divisors (480303).

538065 is a wasteful number, since it uses less digits than its factorization.

538065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 538065 is about 733.5291405254. The cubic root of 538065 is about 81.3351454552.

It can be divided in two parts, 5380 and 65, that added together give a palindrome (5445).

The spelling of 538065 in words is "five hundred thirty-eight thousand, sixty-five".