54455081 has 2 divisors, whose sum is σ = 54455082. Its totient is φ = 54455080.

The previous prime is 54455077. The next prime is 54455113. The reversal of 54455081 is 18055445.

It is an a-pointer prime, because the next prime (54455113) can be obtained adding 54455081 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53523856 + 931225 = 7316^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 54455081 - 2² = 54455077 is a prime.

It is a super-2 number, since 2×54455081² = 5930711693433122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54455021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27227540 + 27227541.

It is an arithmetic number, because the mean of its divisors is an integer number (27227541).

Almost surely, 2^54455081 is an apocalyptic number.

It is an amenable number.

54455081 is a deficient number, since it is larger than the sum of its proper divisors (1).

54455081 is an equidigital number, since it uses as much as digits as its factorization.

54455081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 54455081 is about 7379.3686044268. The cubic root of 54455081 is about 379.0351352709.

The spelling of 54455081 in words is "fifty-four million, four hundred fifty-five thousand, eighty-one".