4555113581 has 2 divisors, whose sum is σ = 4555113582. Its totient is φ = 4555113580.

The previous prime is 4555113551. The next prime is 4555113587. The reversal of 4555113581 is 1853115554.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4402986025 + 152127556 = 66355^2 + 12334^2 .

It is a cyclic number.

It is not a de Polignac number, because 4555113581 - 2¹⁰ = 4555112557 is a prime.

It is a super-2 number, since 2×4555113581² = 41498119471621287122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4555113587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2277556790 + 2277556791.

It is an arithmetic number, because the mean of its divisors is an integer number (2277556791).

Almost surely, 2^4555113581 is an apocalyptic number.

It is an amenable number.

4555113581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4555113581 is an equidigital number, since it uses as much as digits as its factorization.

4555113581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60000, while the sum is 38.

The square root of 4555113581 is about 67491.5815565171. The cubic root of 4555113581 is about 1657.6763323630.

The spelling of 4555113581 in words is "four billion, five hundred fifty-five million, one hundred thirteen thousand, five hundred eighty-one".