455516081 has 6 divisors (see below), whose sum is σ = 476182770. Its totient is φ = 435710528.

The previous prime is 455516069. The next prime is 455516111. The reversal of 455516081 is 180615554.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 353101681 + 102414400 = 18791^2 + 10120^2 .

It is not a de Polignac number, because 455516081 - 2¹⁰ = 455515057 is a prime.

It is a super-2 number, since 2×455516081² = 414989800099197122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455516681) 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 5 ways as a sum of consecutive naturals, for example, 430016 + ... + 431073.

It is an arithmetic number, because the mean of its divisors is an integer number (79363795).

Almost surely, 2^455516081 is an apocalyptic number.

It is an amenable number.

455516081 is a deficient number, since it is larger than the sum of its proper divisors (20666689).

455516081 is an equidigital number, since it uses as much as digits as its factorization.

455516081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861135 (or 861112 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 455516081 is about 21342.8227046003. The cubic root of 455516081 is about 769.4278546174.

The spelling of 455516081 in words is "four hundred fifty-five million, five hundred sixteen thousand, eighty-one".