650775956 has 6 divisors (see below), whose sum is σ = 1138857930. Its totient is φ = 325387976.

The previous prime is 650775949. The next prime is 650775971. The reversal of 650775956 is 659577056.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 487703056 + 163072900 = 22084^2 + 12770^2 .

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 as a sum of consecutive naturals, namely, 81346991 + ... + 81346998.

It is an arithmetic number, because the mean of its divisors is an integer number (189809655).

Almost surely, 2^650775956 is an apocalyptic number.

It is an amenable number.

650775956 is a deficient number, since it is larger than the sum of its proper divisors (488081974).

650775956 is a wasteful number, since it uses less digits than its factorization.

650775956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162693993 (or 162693991 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 50.

The square root of 650775956 is about 25510.3107781932. The cubic root of 650775956 is about 866.5836674625.

The spelling of 650775956 in words is "six hundred fifty million, seven hundred seventy-five thousand, nine hundred fifty-six".