450556897 has 4 divisors (see below), whose sum is σ = 514922176. Its totient is φ = 386191620.

The previous prime is 450556891. The next prime is 450556901. The reversal of 450556897 is 798655054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 450556897 - 2³ = 450556889 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 450556897.

It is not an unprimeable number, because it can be changed into a prime (450556891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32182629 + ... + 32182642.

It is an arithmetic number, because the mean of its divisors is an integer number (128730544).

Almost surely, 2^450556897 is an apocalyptic number.

It is an amenable number.

450556897 is a deficient number, since it is larger than the sum of its proper divisors (64365279).

450556897 is an equidigital number, since it uses as much as digits as its factorization.

450556897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64365278.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The square root of 450556897 is about 21226.3255652032. The cubic root of 450556897 is about 766.6254172094.

The spelling of 450556897 in words is "four hundred fifty million, five hundred fifty-six thousand, eight hundred ninety-seven".