449921600053 has 4 divisors (see below), whose sum is σ = 454976899020. Its totient is φ = 444866301088.

The previous prime is 449921600039. The next prime is 449921600071. The reversal of 449921600053 is 350006129944.

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 49103457649 + 400818142404 = 221593^2 + 633102^2 .

It is a cyclic number.

It is not a de Polignac number, because 449921600053 - 2⁵ = 449921600021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449921599982 and 449921600009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449921606053) 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, 2527649350 + ... + 2527649527.

It is an arithmetic number, because the mean of its divisors is an integer number (113744224755).

Almost surely, 2^449921600053 is an apocalyptic number.

It is an amenable number.

449921600053 is a deficient number, since it is larger than the sum of its proper divisors (5055298967).

449921600053 is an equidigital number, since it uses as much as digits as its factorization.

449921600053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055298966.

The product of its (nonzero) digits is 233280, while the sum is 43.

Adding to 449921600053 its reverse (350006129944), we get a palindrome (799927729997).

The spelling of 449921600053 in words is "four hundred forty-nine billion, nine hundred twenty-one million, six hundred thousand, fifty-three".