449253853 has 2 divisors, whose sum is σ = 449253854. Its totient is φ = 449253852.

The previous prime is 449253751. The next prime is 449253863. The reversal of 449253853 is 358352944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417916249 + 31337604 = 20443^2 + 5598^2 .

It is a cyclic number.

It is not a de Polignac number, because 449253853 - 2⁹ = 449253341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449253863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224626926 + 224626927.

It is an arithmetic number, because the mean of its divisors is an integer number (224626927).

Almost surely, 2^449253853 is an apocalyptic number.

It is an amenable number.

449253853 is a deficient number, since it is larger than the sum of its proper divisors (1).

449253853 is an equidigital number, since it uses as much as digits as its factorization.

449253853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 449253853 is about 21195.6092858875. The cubic root of 449253853 is about 765.8856577277.

Subtracting from 449253853 its reverse (358352944), we obtain a palindrome (90900909).

The spelling of 449253853 in words is "four hundred forty-nine million, two hundred fifty-three thousand, eight hundred fifty-three".