53655593221 has 8 divisors (see below), whose sum is σ = 53930474784. Its totient is φ = 53380906320.

The previous prime is 53655593213. The next prime is 53655593227. The reversal of 53655593221 is 12239555635.

53655593221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53655593221 - 2³ = 53655593213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53655593227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521010 + ... + 615436.

It is an arithmetic number, because the mean of its divisors is an integer number (6741309348).

Almost surely, 2^53655593221 is an apocalyptic number.

It is an amenable number.

53655593221 is a deficient number, since it is larger than the sum of its proper divisors (274881563).

53655593221 is a wasteful number, since it uses less digits than its factorization.

53655593221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97331.

The product of its digits is 1215000, while the sum is 46.

The spelling of 53655593221 in words is "fifty-three billion, six hundred fifty-five million, five hundred ninety-three thousand, two hundred twenty-one".