650505050 has 24 divisors (see below), whose sum is σ = 1303012956. Its totient is φ = 240186240.

The previous prime is 650505043. The next prime is 650505137. The reversal of 650505050 is 50505056.

It can be written as a sum of positive squares in 6 ways, for example, as 234304249 + 416200801 = 15307^2 + 20401^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an alternating number because its digits alternate between even and odd.

650505050 is a modest number, since divided by 505050 gives 650 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499739 + ... + 501038.

Almost surely, 2^650505050 is an apocalyptic number.

650505050 is an abundant number, since it is smaller than the sum of its proper divisors (652507906).

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

650505050 is a wasteful number, since it uses less digits than its factorization.

650505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000802 (or 1000797 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 650505050 is about 25505.0004901000. Note that the first 3 decimals coincide. The cubic root of 650505050 is about 866.4634031861.

The spelling of 650505050 in words is "six hundred fifty million, five hundred five thousand, fifty".