501404650 has 12 divisors (see below), whose sum is σ = 932612742. Its totient is φ = 200561840.

The previous prime is 501404611. The next prime is 501404663. The reversal of 501404650 is 56404105.

It can be written as a sum of positive squares in 3 ways, for example, as 327718609 + 173686041 = 18103^2 + 13179^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5013997 + ... + 5014096.

Almost surely, 2^501404650 is an apocalyptic number.

501404650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

501404650 is a deficient number, since it is larger than the sum of its proper divisors (431208092).

501404650 is a wasteful number, since it uses less digits than its factorization.

501404650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028105 (or 10028100 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 501404650 is about 22392.0666754992. The cubic root of 501404650 is about 794.4430786957.

Adding to 501404650 its reverse (56404105), we get a palindrome (557808755).

The spelling of 501404650 in words is "five hundred one million, four hundred four thousand, six hundred fifty".