52355110040221 has 4 divisors (see below), whose sum is σ = 52364669130972. Its totient is φ = 52345550949472.

The previous prime is 52355110040147. The next prime is 52355110040231. The reversal of 52355110040221 is 12204001155325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41984101676196 + 10371008364025 = 6479514^2 + 3220405^2 .

It is a cyclic number.

It is not a de Polignac number, because 52355110040221 - 2²³ = 52355101651613 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 (52355110040231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4779537160 + ... + 4779548113.

It is an arithmetic number, because the mean of its divisors is an integer number (13091167282743).

Almost surely, 2^{52355110040221} is an apocalyptic number.

It is an amenable number.

52355110040221 is a deficient number, since it is larger than the sum of its proper divisors (9559090751).

52355110040221 is an equidigital number, since it uses as much as digits as its factorization.

52355110040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559090750.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 52355110040221 its reverse (12204001155325), we get a palindrome (64559111195546).

The spelling of 52355110040221 in words is "fifty-two trillion, three hundred fifty-five billion, one hundred ten million, forty thousand, two hundred twenty-one".