501500072 has 32 divisors (see below), whose sum is σ = 978997800. Its totient is φ = 240620544.

The previous prime is 501500071. The next prime is 501500081. The reversal of 501500072 is 270005105.

It can be written as a sum of positive squares in 4 ways, for example, as 501491236 + 8836 = 22394^2 + 94^2 .

It is not an unprimeable number, because it can be changed into a prime (501500071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10004 + ... + 33212.

Almost surely, 2^501500072 is an apocalyptic number.

It is an amenable number.

501500072 is a deficient number, since it is larger than the sum of its proper divisors (477497728).

501500072 is a wasteful number, since it uses less digits than its factorization.

501500072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23325 (or 23321 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 501500072 is about 22394.1972841180. The cubic root of 501500072 is about 794.4934721514.

Adding to 501500072 its reverse (270005105), we get a palindrome (771505177).

The spelling of 501500072 in words is "five hundred one million, five hundred thousand, seventy-two".