650537856 has 48 divisors (see below), whose sum is σ = 1871993760. Its totient is φ = 216845568.

The previous prime is 650537843. The next prime is 650537873. The reversal of 650537856 is 658735056.

650537856 is a `hidden beast` number, since 65 + 0 + 537 + 8 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281200 + ... + 283503.

It is an arithmetic number, because the mean of its divisors is an integer number (38999870).

Almost surely, 2^650537856 is an apocalyptic number.

It is an amenable number.

650537856 is an abundant number, since it is smaller than the sum of its proper divisors (1221455904).

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

650537856 is a wasteful number, since it uses less digits than its factorization.

650537856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564723 (or 564708 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 650537856 is about 25505.6436107776. The cubic root of 650537856 is about 866.4779686485.

The spelling of 650537856 in words is "six hundred fifty million, five hundred thirty-seven thousand, eight hundred fifty-six".