54544414021 has 2 divisors, whose sum is σ = 54544414022. Its totient is φ = 54544414020.

The previous prime is 54544414013. The next prime is 54544414039. The reversal of 54544414021 is 12041444545.

54544414021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32078601025 + 22465812996 = 179105^2 + 149886^2 .

It is a cyclic number.

It is not a de Polignac number, because 54544414021 - 2³ = 54544414013 is a prime.

It is a super-2 number, since 2×54544414021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54544414051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27272207010 + 27272207011.

It is an arithmetic number, because the mean of its divisors is an integer number (27272207011).

Almost surely, 2^54544414021 is an apocalyptic number.

It is an amenable number.

54544414021 is a deficient number, since it is larger than the sum of its proper divisors (1).

54544414021 is an equidigital number, since it uses as much as digits as its factorization.

54544414021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 54544414021 its reverse (12041444545), we get a palindrome (66585858566).

The spelling of 54544414021 in words is "fifty-four billion, five hundred forty-four million, four hundred fourteen thousand, twenty-one".