54120224102561 has 2 divisors, whose sum is σ = 54120224102562. Its totient is φ = 54120224102560.

The previous prime is 54120224102551. The next prime is 54120224102579. The reversal of 54120224102561 is 16520142202145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46323759496336 + 7796464606225 = 6806156^2 + 2792215^2 .

It is a cyclic number.

It is not a de Polignac number, because 54120224102561 - 2³⁴ = 54103044233377 is a prime.

It is a super-2 number, since 2×54120224102561² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54120224102501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27060112051280 + 27060112051281.

It is an arithmetic number, because the mean of its divisors is an integer number (27060112051281).

Almost surely, 2^{54120224102561} is an apocalyptic number.

It is an amenable number.

54120224102561 is a deficient number, since it is larger than the sum of its proper divisors (1).

54120224102561 is an equidigital number, since it uses as much as digits as its factorization.

54120224102561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 54120224102561 in words is "fifty-four trillion, one hundred twenty billion, two hundred twenty-four million, one hundred two thousand, five hundred sixty-one".