650550012 has 96 divisors (see below), whose sum is σ = 1769521152. Its totient is φ = 182186496.

The previous prime is 650550001. The next prime is 650550013. The reversal of 650550012 is 210055056.

It is a super-2 number, since 2×650550012² = 846430636226400288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650550013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1698373 + ... + 1698755.

It is an arithmetic number, because the mean of its divisors is an integer number (18432512).

Almost surely, 2^650550012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650550012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884760576).

650550012 is an abundant number, since it is smaller than the sum of its proper divisors (1118971140).

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

650550012 is a wasteful number, since it uses less digits than its factorization.

650550012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 650550012 is about 25505.8819098654. The cubic root of 650550012 is about 866.4833656393.

The spelling of 650550012 in words is "six hundred fifty million, five hundred fifty thousand, twelve".