455265809 has 4 divisors (see below), whose sum is σ = 470964660. Its totient is φ = 439566960.

The previous prime is 455265793. The next prime is 455265823. The reversal of 455265809 is 908562554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84125584 + 371140225 = 9172^2 + 19265^2 .

It is a cyclic number.

It is not a de Polignac number, because 455265809 - 2⁴ = 455265793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 455265809.

It is not an unprimeable number, because it can be changed into a prime (455265709) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7849382 + ... + 7849439.

It is an arithmetic number, because the mean of its divisors is an integer number (117741165).

Almost surely, 2^455265809 is an apocalyptic number.

It is an amenable number.

455265809 is a deficient number, since it is larger than the sum of its proper divisors (15698851).

455265809 is a wasteful number, since it uses less digits than its factorization.

455265809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15698850.

The product of its (nonzero) digits is 432000, while the sum is 44.

The square root of 455265809 is about 21336.9587570488. The cubic root of 455265809 is about 769.2869144591.

The spelling of 455265809 in words is "four hundred fifty-five million, two hundred sixty-five thousand, eight hundred nine".