501020 has 48 divisors (see below), whose sum is σ = 1185408. Its totient is φ = 176640.

The previous prime is 501019. The next prime is 501029. The reversal of 501020 is 20105.

It is a junction number, because it is equal to n+sod(n) for n = 500989 and 501007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10637 + ... + 10683.

It is an arithmetic number, because the mean of its divisors is an integer number (24696).

2⁵⁰¹⁰²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592704).

501020 is an abundant number, since it is smaller than the sum of its proper divisors (684388).

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

501020 is a wasteful number, since it uses less digits than its factorization.

501020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 501020 is about 707.8276626411. The cubic root of 501020 is about 79.4239875750.

Adding to 501020 its reverse (20105), we get a palindrome (521125).

The spelling of 501020 in words is "five hundred one thousand, twenty".