4555555545481 has 2 divisors, whose sum is σ = 4555555545482. Its totient is φ = 4555555545480.

The previous prime is 4555555545469. The next prime is 4555555545571. The reversal of 4555555545481 is 1845455555554.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3287364245881 + 1268191299600 = 1813109^2 + 1126140^2 .

It is a cyclic number.

It is not a de Polignac number, because 4555555545481 - 2¹¹ = 4555555543433 is a prime.

It is a super-2 number, since 2×4555555545481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4555555545881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2277777772740 + 2277777772741.

It is an arithmetic number, because the mean of its divisors is an integer number (2277777772741).

Almost surely, 2^{4555555545481} is an apocalyptic number.

It is an amenable number.

4555555545481 is a deficient number, since it is larger than the sum of its proper divisors (1).

4555555545481 is an equidigital number, since it uses as much as digits as its factorization.

4555555545481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 200000000, while the sum is 61.

The spelling of 4555555545481 in words is "four trillion, five hundred fifty-five billion, five hundred fifty-five million, five hundred forty-five thousand, four hundred eighty-one".