501500 has 48 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 185600.

The previous prime is 501493. The next prime is 501503. The reversal of 501500 is 5105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501503) by changing a digit.

501500 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8471 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (24570).

2⁵⁰¹⁵⁰⁰ is an apocalyptic number.

501500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589680).

501500 is an abundant number, since it is smaller than the sum of its proper divisors (677860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501500 is a wasteful number, since it uses less digits than its factorization.

501500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 501500 is about 708.1666470542. The cubic root of 501500 is about 79.4493434130.

Adding to 501500 its reverse (5105), we get a palindrome (506605).

It can be divided in two parts, 501 and 500, that added together give a palindrome (1001).

The spelling of 501500 in words is "five hundred one thousand, five hundred".