54450553481 has 2 divisors, whose sum is σ = 54450553482. Its totient is φ = 54450553480.

The previous prime is 54450553471. The next prime is 54450553517. The reversal of 54450553481 is 18435505445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39196080400 + 15254473081 = 197980^2 + 123509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54450553481 is a prime.

It is a super-2 number, since 2×54450553481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54450553471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27225276740 + 27225276741.

It is an arithmetic number, because the mean of its divisors is an integer number (27225276741).

Almost surely, 2^54450553481 is an apocalyptic number.

It is an amenable number.

54450553481 is a deficient number, since it is larger than the sum of its proper divisors (1).

54450553481 is an equidigital number, since it uses as much as digits as its factorization.

54450553481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960000, while the sum is 44.

The spelling of 54450553481 in words is "fifty-four billion, four hundred fifty million, five hundred fifty-three thousand, four hundred eighty-one".