651500650 has 24 divisors (see below), whose sum is σ = 1250884224. Its totient is φ = 252193200.

The previous prime is 651500593. The next prime is 651500657. The reversal of 651500650 is 56005156.

651500650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (651500657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208612 + ... + 211711.

It is an arithmetic number, because the mean of its divisors is an integer number (52120176).

Almost surely, 2^651500650 is an apocalyptic number.

651500650 is a deficient number, since it is larger than the sum of its proper divisors (599383574).

651500650 is a wasteful number, since it uses less digits than its factorization.

651500650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420366 (or 420361 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 651500650 is about 25524.5107690627. The cubic root of 651500650 is about 866.9052195058.

The spelling of 651500650 in words is "six hundred fifty-one million, five hundred thousand, six hundred fifty".