54053522221 has 2 divisors, whose sum is σ = 54053522222. Its totient is φ = 54053522220.

The previous prime is 54053522219. The next prime is 54053522267. The reversal of 54053522221 is 12222535045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47748368196 + 6305154025 = 218514^2 + 79405^2 .

It is a cyclic number.

It is not a de Polignac number, because 54053522221 - 2¹ = 54053522219 is a prime.

It is a super-2 number, since 2×54053522221² (a number of 22 digits) contains 22 as substring.

Together with 54053522219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54053522291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27026761110 + 27026761111.

It is an arithmetic number, because the mean of its divisors is an integer number (27026761111).

Almost surely, 2^54053522221 is an apocalyptic number.

It is an amenable number.

54053522221 is a deficient number, since it is larger than the sum of its proper divisors (1).

54053522221 is an equidigital number, since it uses as much as digits as its factorization.

54053522221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 54053522221 in words is "fifty-four billion, fifty-three million, five hundred twenty-two thousand, two hundred twenty-one".