501430564 has 6 divisors (see below), whose sum is σ = 877503494. Its totient is φ = 250715280.

The previous prime is 501430541. The next prime is 501430571. The reversal of 501430564 is 465034105.

It can be written as a sum of positive squares in only one way, i.e., 501401664 + 28900 = 22392^2 + 170^2 .

It is a super-2 number, since 2×501430564² = 502865221026716192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62678817 + ... + 62678824.

Almost surely, 2^501430564 is an apocalyptic number.

It is an amenable number.

501430564 is a deficient number, since it is larger than the sum of its proper divisors (376072930).

501430564 is a wasteful number, since it uses less digits than its factorization.

501430564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125357645 (or 125357643 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 501430564 is about 22392.6453104585. The cubic root of 501430564 is about 794.4567648095.

Adding to 501430564 its reverse (465034105), we get a palindrome (966464669).

The spelling of 501430564 in words is "five hundred one million, four hundred thirty thousand, five hundred sixty-four".