54521222350369 has 2 divisors, whose sum is σ = 54521222350370. Its totient is φ = 54521222350368.

The previous prime is 54521222350247. The next prime is 54521222350421. The reversal of 54521222350369 is 96305322212545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40103253940369 + 14417968410000 = 6332713^2 + 3797100^2 .

It is a cyclic number.

It is not a de Polignac number, because 54521222350369 - 2³³ = 54512632415777 is a prime.

It is a super-2 number, since 2×54521222350369² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54521222350669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27260611175184 + 27260611175185.

It is an arithmetic number, because the mean of its divisors is an integer number (27260611175185).

Almost surely, 2^{54521222350369} is an apocalyptic number.

It is an amenable number.

54521222350369 is a deficient number, since it is larger than the sum of its proper divisors (1).

54521222350369 is an equidigital number, since it uses as much as digits as its factorization.

54521222350369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 54521222350369 in words is "fifty-four trillion, five hundred twenty-one billion, two hundred twenty-two million, three hundred fifty thousand, three hundred sixty-nine".