8325455681 has 4 divisors (see below), whose sum is σ = 8325660672. Its totient is φ = 8325250692.

The previous prime is 8325455629. The next prime is 8325455693. The reversal of 8325455681 is 1865545238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1865545238 = 2 ⋅932772619.

It is a cyclic number.

It is not a de Polignac number, because 8325455681 - 2⁶ = 8325455617 is a prime.

It is a super-2 number, since 2×8325455681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8325455081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18785 + ... + 130398.

It is an arithmetic number, because the mean of its divisors is an integer number (2081415168).

Almost surely, 2^8325455681 is an apocalyptic number.

It is an amenable number.

8325455681 is a deficient number, since it is larger than the sum of its proper divisors (204991).

8325455681 is a wasteful number, since it uses less digits than its factorization.

8325455681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204990.

The product of its digits is 1152000, while the sum is 47.

The square root of 8325455681 is about 91243.9350368012. The cubic root of 8325455681 is about 2026.7616174778.

The spelling of 8325455681 in words is "eight billion, three hundred twenty-five million, four hundred fifty-five thousand, six hundred eighty-one".