650252661 has 16 divisors (see below), whose sum is σ = 907054848. Its totient is φ = 413926400.

The previous prime is 650252653. The next prime is 650252663. The reversal of 650252661 is 166252056.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 650252661 - 2³ = 650252653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650252663) 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 15 ways as a sum of consecutive naturals, for example, 50460 + ... + 62021.

It is an arithmetic number, because the mean of its divisors is an integer number (56690928).

Almost surely, 2^650252661 is an apocalyptic number.

It is an amenable number.

650252661 is a deficient number, since it is larger than the sum of its proper divisors (256802187).

650252661 is a wasteful number, since it uses less digits than its factorization.

650252661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112572.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 650252661 is about 25500.0521764172. The cubic root of 650252661 is about 866.3513291801.

The spelling of 650252661 in words is "six hundred fifty million, two hundred fifty-two thousand, six hundred sixty-one".