4553323421 has 2 divisors, whose sum is σ = 4553323422. Its totient is φ = 4553323420.

The previous prime is 4553323403. The next prime is 4553323427. The reversal of 4553323421 is 1243233554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3823567225 + 729756196 = 61835^2 + 27014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4553323421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4553323427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2276661710 + 2276661711.

It is an arithmetic number, because the mean of its divisors is an integer number (2276661711).

Almost surely, 2^4553323421 is an apocalyptic number.

It is an amenable number.

4553323421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4553323421 is an equidigital number, since it uses as much as digits as its factorization.

4553323421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 32.

The square root of 4553323421 is about 67478.3181547970. The cubic root of 4553323421 is about 1657.4591482659.

Adding to 4553323421 its reverse (1243233554), we get a palindrome (5796556975).

The spelling of 4553323421 in words is "four billion, five hundred fifty-three million, three hundred twenty-three thousand, four hundred twenty-one".