450000055 has 8 divisors (see below), whose sum is σ = 540120672. Its totient is φ = 359919648.

The previous prime is 450000029. The next prime is 450000071. The reversal of 450000055 is 550000054.

It is a happy number.

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 450000055 - 2¹³ = 449991863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449999987 and 450000041.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26982 + ... + 40348.

It is an arithmetic number, because the mean of its divisors is an integer number (67515084).

Almost surely, 2^450000055 is an apocalyptic number.

450000055 is a deficient number, since it is larger than the sum of its proper divisors (90120617).

450000055 is a wasteful number, since it uses less digits than its factorization.

450000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20105.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 450000055 is about 21213.2047319588. The cubic root of 450000055 is about 766.3094636136.

Subtracting 450000055 from its reverse (550000054), we obtain a palindrome (99999999).

The spelling of 450000055 in words is "four hundred fifty million, fifty-five", and thus it is an aban number.