8548053581 has 2 divisors, whose sum is σ = 8548053582. Its totient is φ = 8548053580.

The previous prime is 8548053571. The next prime is 8548053587. The reversal of 8548053581 is 1853508458.

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., 6861637225 + 1686416356 = 82835^2 + 41066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8548053581 is a prime.

It is a super-2 number, since 2×8548053581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8548053587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4274026790 + 4274026791.

It is an arithmetic number, because the mean of its divisors is an integer number (4274026791).

Almost surely, 2^8548053581 is an apocalyptic number.

It is an amenable number.

8548053581 is a deficient number, since it is larger than the sum of its proper divisors (1).

8548053581 is an equidigital number, since it uses as much as digits as its factorization.

8548053581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768000, while the sum is 47.

The square root of 8548053581 is about 92455.6844169140. The cubic root of 8548053581 is about 2044.6661722767. Note that the first 3 decimals are identical.

The spelling of 8548053581 in words is "eight billion, five hundred forty-eight million, fifty-three thousand, five hundred eighty-one".