455561985 has 8 divisors (see below), whose sum is σ = 728899200. Its totient is φ = 242966384.

The previous prime is 455561959. The next prime is 455562001. The reversal of 455561985 is 589165554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 455561985 - 2⁶ = 455561921 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15185385 + ... + 15185414.

It is an arithmetic number, because the mean of its divisors is an integer number (91112400).

Almost surely, 2^455561985 is an apocalyptic number.

It is an amenable number.

455561985 is a deficient number, since it is larger than the sum of its proper divisors (273337215).

455561985 is a wasteful number, since it uses less digits than its factorization.

455561985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30370807.

The product of its digits is 1080000, while the sum is 48.

The square root of 455561985 is about 21343.8980741569. The cubic root of 455561985 is about 769.4536997568.

The spelling of 455561985 in words is "four hundred fifty-five million, five hundred sixty-one thousand, nine hundred eighty-five".