5188898581 has 2 divisors, whose sum is σ = 5188898582. Its totient is φ = 5188898580.

The previous prime is 5188898567. The next prime is 5188898587. The reversal of 5188898581 is 1858988815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4825386225 + 363512356 = 69465^2 + 19066^2 .

It is a cyclic number.

It is not a de Polignac number, because 5188898581 - 2⁷ = 5188898453 is a prime.

It is a super-2 number, since 2×5188898581² = 53849336967807627122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5188898587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2594449290 + 2594449291.

It is an arithmetic number, because the mean of its divisors is an integer number (2594449291).

Almost surely, 2^5188898581 is an apocalyptic number.

It is an amenable number.

5188898581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5188898581 is an equidigital number, since it uses as much as digits as its factorization.

5188898581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7372800, while the sum is 61.

The square root of 5188898581 is about 72034.0098911618. The cubic root of 5188898581 is about 1731.2444498147.

The spelling of 5188898581 in words is "five billion, one hundred eighty-eight million, eight hundred ninety-eight thousand, five hundred eighty-one".