5424218581 has 2 divisors, whose sum is σ = 5424218582. Its totient is φ = 5424218580.

The previous prime is 5424218539. The next prime is 5424218587. The reversal of 5424218581 is 1858124245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5050376356 + 373842225 = 71066^2 + 19335^2 .

It is a cyclic number.

It is not a de Polignac number, because 5424218581 - 2¹¹ = 5424216533 is a prime.

It is a super-2 number, since 2×5424218581² = 58844294428931307122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5424218587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2712109290 + 2712109291.

It is an arithmetic number, because the mean of its divisors is an integer number (2712109291).

Almost surely, 2^5424218581 is an apocalyptic number.

It is an amenable number.

5424218581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5424218581 is an equidigital number, since it uses as much as digits as its factorization.

5424218581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102400, while the sum is 40.

The square root of 5424218581 is about 73649.2945044282. The cubic root of 5424218581 is about 1757.0295301871.

The spelling of 5424218581 in words is "five billion, four hundred twenty-four million, two hundred eighteen thousand, five hundred eighty-one".