4548555081 has 20 divisors (see below), whose sum is σ = 7765435392. Its totient is φ = 2599174008.

The previous prime is 4548555079. The next prime is 4548555091. The reversal of 4548555081 is 1805558454.

4548555081 is a `hidden beast` number, since 4 + 548 + 55 + 50 + 8 + 1 = 666.

It is not a de Polignac number, because 4548555081 - 2¹ = 4548555079 is a prime.

It is a super-2 number, since 2×4548555081² = 41378706649781833122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4548555001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4010505 + ... + 4011638.

Almost surely, 2^4548555081 is an apocalyptic number.

It is an amenable number.

4548555081 is a deficient number, since it is larger than the sum of its proper divisors (3216880311).

4548555081 is an equidigital number, since it uses as much as digits as its factorization.

4548555081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022162 (or 8022153 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 45.

The square root of 4548555081 is about 67442.9765134962. The cubic root of 4548555081 is about 1656.8803703436.

The spelling of 4548555081 in words is "four billion, five hundred forty-eight million, five hundred fifty-five thousand, eighty-one".