501643132 has 6 divisors (see below), whose sum is σ = 877875488. Its totient is φ = 250821564.

The previous prime is 501643081. The next prime is 501643201. The reversal of 501643132 is 231346105.

It is a junction number, because it is equal to n+sod(n) for n = 501643097 and 501643106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62705388 + ... + 62705395.

Almost surely, 2^501643132 is an apocalyptic number.

It is an amenable number.

501643132 is a deficient number, since it is larger than the sum of its proper divisors (376232356).

501643132 is a wasteful number, since it uses less digits than its factorization.

501643132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125410787 (or 125410785 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 501643132 is about 22397.3911873682. The cubic root of 501643132 is about 794.5690118083.

Adding to 501643132 its reverse (231346105), we get a palindrome (732989237).

The spelling of 501643132 in words is "five hundred one million, six hundred forty-three thousand, one hundred thirty-two".