53344441412221 has 2 divisors, whose sum is σ = 53344441412222. Its totient is φ = 53344441412220.

The previous prime is 53344441412209. The next prime is 53344441412293. The reversal of 53344441412221 is 12221414444335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31062397423225 + 22282043988996 = 5573365^2 + 4720386^2 .

It is a cyclic number.

It is not a de Polignac number, because 53344441412221 - 2⁵ = 53344441412189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53344441472221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26672220706110 + 26672220706111.

It is an arithmetic number, because the mean of its divisors is an integer number (26672220706111).

Almost surely, 2^{53344441412221} is an apocalyptic number.

It is an amenable number.

53344441412221 is a deficient number, since it is larger than the sum of its proper divisors (1).

53344441412221 is an equidigital number, since it uses as much as digits as its factorization.

53344441412221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 40.

Adding to 53344441412221 its reverse (12221414444335), we get a palindrome (65565855856556).

The spelling of 53344441412221 in words is "fifty-three trillion, three hundred forty-four billion, four hundred forty-one million, four hundred twelve thousand, two hundred twenty-one".