501516620 has 48 divisors (see below), whose sum is σ = 1155657888. Its totient is φ = 181301760.

The previous prime is 501516599. The next prime is 501516623. The reversal of 501516620 is 26615105.

It is a self number, because there is not a number n which added to its sum of digits gives 501516620.

It is not an unprimeable number, because it can be changed into a prime (501516623) 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, 31472 + ... + 44648.

It is an arithmetic number, because the mean of its divisors is an integer number (24076206).

Almost surely, 2^501516620 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 501516620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577828944).

501516620 is an abundant number, since it is smaller than the sum of its proper divisors (654141268).

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

501516620 is a wasteful number, since it uses less digits than its factorization.

501516620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13370 (or 13368 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 501516620 is about 22394.5667517816. The cubic root of 501516620 is about 794.5022106901.

The spelling of 501516620 in words is "five hundred one million, five hundred sixteen thousand, six hundred twenty".