52408453221 has 24 divisors (see below), whose sum is σ = 78523987360. Its totient is φ = 34930449072.

The previous prime is 52408453219. The next prime is 52408453291. The reversal of 52408453221 is 12235480425.

52408453221 is a `hidden beast` number, since 5 + 2 + 40 + 84 + 532 + 2 + 1 = 666.

It is not a de Polignac number, because 52408453221 - 2¹ = 52408453219 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 (52408453211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1065315 + ... + 1113423.

Almost surely, 2^52408453221 is an apocalyptic number.

It is an amenable number.

52408453221 is a deficient number, since it is larger than the sum of its proper divisors (26115534139).

52408453221 is an equidigital number, since it uses as much as digits as its factorization.

52408453221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52607 (or 52595 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 52408453221 in words is "fifty-two billion, four hundred eight million, four hundred fifty-three thousand, two hundred twenty-one".