455521667 has 4 divisors (see below), whose sum is σ = 455595096. Its totient is φ = 455448240.

The previous prime is 455521643. The next prime is 455521753. The reversal of 455521667 is 766125554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766125554 = 2 ⋅383062777.

It is a cyclic number.

It is not a de Polignac number, because 455521667 - 2⁸ = 455521411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455521867) 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, 26453 + ... + 40134.

It is an arithmetic number, because the mean of its divisors is an integer number (113898774).

Almost surely, 2^455521667 is an apocalyptic number.

455521667 is a deficient number, since it is larger than the sum of its proper divisors (73429).

455521667 is an equidigital number, since it uses as much as digits as its factorization.

455521667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73428.

The product of its digits is 252000, while the sum is 41.

The square root of 455521667 is about 21342.9535678640. The cubic root of 455521667 is about 769.4309997727.

The spelling of 455521667 in words is "four hundred fifty-five million, five hundred twenty-one thousand, six hundred sixty-seven".