501513930 has 80 divisors (see below), whose sum is σ = 1419533280. Its totient is φ = 126694368.

The previous prime is 501513917. The next prime is 501513937. The reversal of 501513930 is 39315105.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 501513894 and 501513903.

It is not an unprimeable number, because it can be changed into a prime (501513937) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 904 + ... + 31683.

It is an arithmetic number, because the mean of its divisors is an integer number (17744166).

Almost surely, 2^501513930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501513930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709766640).

501513930 is an abundant number, since it is smaller than the sum of its proper divisors (918019350).

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

501513930 is a wasteful number, since it uses less digits than its factorization.

501513930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32625 (or 32616 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 501513930 is about 22394.5066924905. The cubic root of 501513930 is about 794.5007901890.

The spelling of 501513930 in words is "five hundred one million, five hundred thirteen thousand, nine hundred thirty".