650551656 has 32 divisors (see below), whose sum is σ = 1633685760. Its totient is φ = 215876352.

The previous prime is 650551651. The next prime is 650551661. The reversal of 650551656 is 656155056.

It is an interprime number because it is at equal distance from previous prime (650551651) and next prime (650551661).

It is not an unprimeable number, because it can be changed into a prime (650551651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55425 + ... + 66128.

It is an arithmetic number, because the mean of its divisors is an integer number (51052680).

Almost surely, 2^650551656 is an apocalyptic number.

It is an amenable number.

650551656 is an abundant number, since it is smaller than the sum of its proper divisors (983134104).

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

650551656 is a wasteful number, since it uses less digits than its factorization.

650551656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121785 (or 121781 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 650551656 is about 25505.9141377054. The cubic root of 650551656 is about 866.4840955332.

The spelling of 650551656 in words is "six hundred fifty million, five hundred fifty-one thousand, six hundred fifty-six".