53575666647 has 8 divisors (see below), whose sum is σ = 72954099456. Its totient is φ = 34957172472.

The previous prime is 53575666531. The next prime is 53575666709. The reversal of 53575666647 is 74666657535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53575666647 - 2¹⁶ = 53575601111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53575666747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189984493 + ... + 189984774.

It is an arithmetic number, because the mean of its divisors is an integer number (9119262432).

Almost surely, 2^53575666647 is an apocalyptic number.

53575666647 is a deficient number, since it is larger than the sum of its proper divisors (19378432809).

53575666647 is a wasteful number, since it uses less digits than its factorization.

53575666647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379969317.

The product of its digits is 95256000, while the sum is 60.

The spelling of 53575666647 in words is "fifty-three billion, five hundred seventy-five million, six hundred sixty-six thousand, six hundred forty-seven".