650553645 has 24 divisors (see below), whose sum is σ = 1210827744. Its totient is φ = 297395616.

The previous prime is 650553619. The next prime is 650553707. The reversal of 650553645 is 546355056.

650553645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 650553645 - 2⁶ = 650553581 is a prime.

It is a super-3 number, since 3×650553645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441819 + ... + 443288.

It is an arithmetic number, because the mean of its divisors is an integer number (50451156).

Almost surely, 2^650553645 is an apocalyptic number.

It is an amenable number.

650553645 is a deficient number, since it is larger than the sum of its proper divisors (560274099).

650553645 is a wasteful number, since it uses less digits than its factorization.

650553645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885129 (or 885122 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The square root of 650553645 is about 25505.9531286325. The cubic root of 650553645 is about 866.4849785967.

The spelling of 650553645 in words is "six hundred fifty million, five hundred fifty-three thousand, six hundred forty-five".