455765551 has 4 divisors (see below), whose sum is σ = 457411192. Its totient is φ = 454119912.

The previous prime is 455765509. The next prime is 455765561. The reversal of 455765551 is 155567554.

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

It is a cyclic number.

It is not a de Polignac number, because 455765551 - 2²⁷ = 321547823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 455765498 and 455765507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455765561) 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 3 ways as a sum of consecutive naturals, for example, 822405 + ... + 822958.

It is an arithmetic number, because the mean of its divisors is an integer number (114352798).

Almost surely, 2^455765551 is an apocalyptic number.

455765551 is a deficient number, since it is larger than the sum of its proper divisors (1645641).

455765551 is a wasteful number, since it uses less digits than its factorization.

455765551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645640.

The product of its digits is 525000, while the sum is 43.

The square root of 455765551 is about 21348.6662581061. Note that the first 3 decimals coincide. The cubic root of 455765551 is about 769.5682917643.

The spelling of 455765551 in words is "four hundred fifty-five million, seven hundred sixty-five thousand, five hundred fifty-one".