501385560 has 128 divisors (see below), whose sum is σ = 1626428160. Its totient is φ = 122918400.

The previous prime is 501385559. The next prime is 501385571. The reversal of 501385560 is 65583105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515875 + ... + 516845.

It is an arithmetic number, because the mean of its divisors is an integer number (12706470).

Almost surely, 2^501385560 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 501385560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813214080).

501385560 is an abundant number, since it is smaller than the sum of its proper divisors (1125042600).

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

501385560 is a wasteful number, since it uses less digits than its factorization.

501385560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 501385560 is about 22391.6404044009. The cubic root of 501385560 is about 794.4329962797.

The spelling of 501385560 in words is "five hundred one million, three hundred eighty-five thousand, five hundred sixty".