501552 has 70 divisors (see below), whose sum is σ = 1490852. Its totient is φ = 163296.

The previous prime is 501511. The next prime is 501563. The reversal of 501552 is 255105.

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

It is a nialpdrome in base 3 and base 9.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11643 + ... + 11685.

2⁵⁰¹⁵⁵² 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 501552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745426).

501552 is an abundant number, since it is smaller than the sum of its proper divisors (989300).

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

501552 is an equidigital number, since it uses as much as digits as its factorization.

501552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 501552 is about 708.2033606246. The cubic root of 501552 is about 79.4520893240.

Adding to 501552 its reverse (255105), we get a palindrome (756657).

The spelling of 501552 in words is "five hundred one thousand, five hundred fifty-two".