501430650 has 48 divisors (see below), whose sum is σ = 1421200704. Its totient is φ = 114612480.

The previous prime is 501430621. The next prime is 501430669. The reversal of 501430650 is 56034105.

It is a self number, because there is not a number n which added to its sum of digits gives 501430650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237727 + ... + 239826.

It is an arithmetic number, because the mean of its divisors is an integer number (29608348).

Almost surely, 2^501430650 is an apocalyptic number.

501430650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

501430650 is an abundant number, since it is smaller than the sum of its proper divisors (919770054).

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

501430650 is a wasteful number, since it uses less digits than its factorization.

501430650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477575 (or 477570 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 501430650 is about 22392.6472307318. The cubic root of 501430650 is about 794.4568102284.

Adding to 501430650 its reverse (56034105), we get a palindrome (557464755).

The spelling of 501430650 in words is "five hundred one million, four hundred thirty thousand, six hundred fifty".