4552425421 has 2 divisors, whose sum is σ = 4552425422. Its totient is φ = 4552425420.

The previous prime is 4552425413. The next prime is 4552425431. The reversal of 4552425421 is 1245242554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4155220521 + 397204900 = 64461^2 + 19930^2 .

It is a cyclic number.

It is not a de Polignac number, because 4552425421 - 2³ = 4552425413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4552425431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2276212710 + 2276212711.

It is an arithmetic number, because the mean of its divisors is an integer number (2276212711).

Almost surely, 2^4552425421 is an apocalyptic number.

It is an amenable number.

4552425421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4552425421 is an equidigital number, since it uses as much as digits as its factorization.

4552425421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64000, while the sum is 34.

The square root of 4552425421 is about 67471.6638374955. The cubic root of 4552425421 is about 1657.3501805197.

Adding to 4552425421 its reverse (1245242554), we get a palindrome (5797667975).

The spelling of 4552425421 in words is "four billion, five hundred fifty-two million, four hundred twenty-five thousand, four hundred twenty-one".