455505091 has 4 divisors (see below), whose sum is σ = 455567112. Its totient is φ = 455443072.

The previous prime is 455505077. The next prime is 455505097. The reversal of 455505091 is 190505554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190505554 = 2 ⋅95252777.

It is a cyclic number.

It is not a de Polignac number, because 455505091 - 2¹⁹ = 454980803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455505097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18241 + ... + 35266.

It is an arithmetic number, because the mean of its divisors is an integer number (113891778).

Almost surely, 2^455505091 is an apocalyptic number.

455505091 is a deficient number, since it is larger than the sum of its proper divisors (62021).

455505091 is an equidigital number, since it uses as much as digits as its factorization.

455505091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62020.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 455505091 is about 21342.5652394458. The cubic root of 455505091 is about 769.4216667055.

The spelling of 455505091 in words is "four hundred fifty-five million, five hundred five thousand, ninety-one".