52988766433221 has 4 divisors (see below), whose sum is σ = 70651688577632. Its totient is φ = 35325844288812.

The previous prime is 52988766433199. The next prime is 52988766433241. The reversal of 52988766433221 is 12233466788925.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52988766433221 - 2⁵ = 52988766433189 is a prime.

It is a super-2 number, since 2×52988766433221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52988766433241) 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, 8831461072201 + ... + 8831461072206.

It is an arithmetic number, because the mean of its divisors is an integer number (17662922144408).

Almost surely, 2^{52988766433221} is an apocalyptic number.

It is an amenable number.

52988766433221 is a deficient number, since it is larger than the sum of its proper divisors (17662922144411).

52988766433221 is a wasteful number, since it uses less digits than its factorization.

52988766433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17662922144410.

The product of its digits is 209018880, while the sum is 66.

The spelling of 52988766433221 in words is "fifty-two trillion, nine hundred eighty-eight billion, seven hundred sixty-six million, four hundred thirty-three thousand, two hundred twenty-one".