501066 has 24 divisors (see below), whose sum is σ = 1126944. Its totient is φ = 166860.

The previous prime is 501043. The next prime is 501077. The reversal of 501066 is 660105.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30 + ... + 1001.

It is an arithmetic number, because the mean of its divisors is an integer number (46956).

2⁵⁰¹⁰⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563472).

501066 is an abundant number, since it is smaller than the sum of its proper divisors (625878).

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

501066 is a wasteful number, since it uses less digits than its factorization.

501066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 501066 is about 707.8601556805. The cubic root of 501066 is about 79.4264182109.

The spelling of 501066 in words is "five hundred one thousand, sixty-six".