455051999 has 4 divisors (see below), whose sum is σ = 456695064. Its totient is φ = 453408936.

The previous prime is 455051981. The next prime is 455052019. The reversal of 455051999 is 999150554.

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 455051999 - 2¹⁶ = 454986463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455051099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821117 + ... + 821670.

It is an arithmetic number, because the mean of its divisors is an integer number (114173766).

Almost surely, 2^455051999 is an apocalyptic number.

455051999 is a deficient number, since it is larger than the sum of its proper divisors (1643065).

455051999 is a wasteful number, since it uses less digits than its factorization.

455051999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643064.

The product of its (nonzero) digits is 364500, while the sum is 47.

The square root of 455051999 is about 21331.9478482393. The cubic root of 455051999 is about 769.1664668821.

The spelling of 455051999 in words is "four hundred fifty-five million, fifty-one thousand, nine hundred ninety-nine".