53552355521 has 8 divisors (see below), whose sum is σ = 63313129920. Its totient is φ = 44319190608.

The previous prime is 53552355499. The next prime is 53552355529. The reversal of 53552355521 is 12555325535.

53552355521 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 not a de Polignac number, because 53552355521 - 2⁶ = 53552355457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53552355529) 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, 131902151 + ... + 131902556.

It is an arithmetic number, because the mean of its divisors is an integer number (7914141240).

Almost surely, 2^53552355521 is an apocalyptic number.

It is an amenable number.

53552355521 is a deficient number, since it is larger than the sum of its proper divisors (9760774399).

53552355521 is a wasteful number, since it uses less digits than its factorization.

53552355521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263804743.

The product of its digits is 562500, while the sum is 41.

The spelling of 53552355521 in words is "fifty-three billion, five hundred fifty-two million, three hundred fifty-five thousand, five hundred twenty-one".