443649053 has 2 divisors, whose sum is σ = 443649054. Its totient is φ = 443649052.

The previous prime is 443649013. The next prime is 443649083. The reversal of 443649053 is 350946344.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443607844 + 41209 = 21062^2 + 203^2 .

It is a cyclic number.

It is not a de Polignac number, because 443649053 - 2²² = 439454749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 443648998 and 443649016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443649013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221824526 + 221824527.

It is an arithmetic number, because the mean of its divisors is an integer number (221824527).

Almost surely, 2^443649053 is an apocalyptic number.

It is an amenable number.

443649053 is a deficient number, since it is larger than the sum of its proper divisors (1).

443649053 is an equidigital number, since it uses as much as digits as its factorization.

443649053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 443649053 is about 21062.9782556978. The cubic root of 443649053 is about 762.6873085659.

The spelling of 443649053 in words is "four hundred forty-three million, six hundred forty-nine thousand, fifty-three".