450025505 has 4 divisors (see below), whose sum is σ = 540030612. Its totient is φ = 360020400.

The previous prime is 450025501. The next prime is 450025519. The reversal of 450025505 is 505520054.

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 316021729 + 134003776 = 17777^2 + 11576^2 .

It is not a de Polignac number, because 450025505 - 2² = 450025501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450025501) 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, 45002546 + ... + 45002555.

It is an arithmetic number, because the mean of its divisors is an integer number (135007653).

Almost surely, 2^450025505 is an apocalyptic number.

It is an amenable number.

450025505 is a deficient number, since it is larger than the sum of its proper divisors (90005107).

450025505 is an equidigital number, since it uses as much as digits as its factorization.

450025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90005106.

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 450025505 is about 21213.8045856937. The cubic root of 450025505 is about 766.3239096919.

Adding to 450025505 its reverse (505520054), we get a palindrome (955545559).

The spelling of 450025505 in words is "four hundred fifty million, twenty-five thousand, five hundred five".