500009650 has 96 divisors (see below), whose sum is σ = 1118499840. Its totient is φ = 162592320.

The previous prime is 500009647. The next prime is 500009651. The reversal of 500009650 is 56900005.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (500009651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1440777 + ... + 1441123.

It is an arithmetic number, because the mean of its divisors is an integer number (11651040).

Almost surely, 2^500009650 is an apocalyptic number.

500009650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

500009650 is an abundant number, since it is smaller than the sum of its proper divisors (618490190).

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

500009650 is a wasteful number, since it uses less digits than its factorization.

500009650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 500009650 is about 22360.8955545166. The cubic root of 500009650 is about 793.7056320913.

Adding to 500009650 its reverse (56900005), we get a palindrome (556909655).

The spelling of 500009650 in words is "five hundred million, nine thousand, six hundred fifty".