4643650553 has 4 divisors (see below), whose sum is σ = 4769154660. Its totient is φ = 4518146448.

The previous prime is 4643650547. The next prime is 4643650567. The reversal of 4643650553 is 3550563464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4331350969 + 312299584 = 65813^2 + 17672^2 .

It is a cyclic number.

It is not a de Polignac number, because 4643650553 - 2¹⁰ = 4643649529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4643650553.

It is not an unprimeable number, because it can be changed into a prime (4643650513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62751998 + ... + 62752071.

It is an arithmetic number, because the mean of its divisors is an integer number (1192288665).

Almost surely, 2^4643650553 is an apocalyptic number.

It is an amenable number.

4643650553 is a deficient number, since it is larger than the sum of its proper divisors (125504107).

4643650553 is a wasteful number, since it uses less digits than its factorization.

4643650553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125504106.

The product of its (nonzero) digits is 648000, while the sum is 41.

The square root of 4643650553 is about 68144.3361769707. The cubic root of 4643650553 is about 1668.3474818175.

The spelling of 4643650553 in words is "four billion, six hundred forty-three million, six hundred fifty thousand, five hundred fifty-three".