650444561025 has 48 divisors (see below), whose sum is σ = 1233373630464. Its totient is φ = 296295324480.

The previous prime is 650444560999. The next prime is 650444561029. The reversal of 650444561025 is 520165444056.

It is not a de Polignac number, because 650444561025 - 2²² = 650440366721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (650444561029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2040369 + ... + 2337518.

It is an arithmetic number, because the mean of its divisors is an integer number (25695283968).

Almost surely, 2^650444561025 is an apocalyptic number.

It is an amenable number.

650444561025 is a deficient number, since it is larger than the sum of its proper divisors (582929069439).

650444561025 is a wasteful number, since it uses less digits than its factorization.

650444561025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378190 (or 4378185 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 650444561025 in words is "six hundred fifty billion, four hundred forty-four million, five hundred sixty-one thousand, twenty-five".