4552125421 has 2 divisors, whose sum is σ = 4552125422. Its totient is φ = 4552125420.

The previous prime is 4552125397. The next prime is 4552125443. The reversal of 4552125421 is 1245212554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3865108900 + 687016521 = 62170^2 + 26211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4552125421 - 2¹⁵ = 4552092653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4552125121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2276062710 + 2276062711.

It is an arithmetic number, because the mean of its divisors is an integer number (2276062711).

Almost surely, 2^4552125421 is an apocalyptic number.

It is an amenable number.

4552125421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4552125421 is an equidigital number, since it uses as much as digits as its factorization.

4552125421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16000, while the sum is 31.

The square root of 4552125421 is about 67469.4406453766. The cubic root of 4552125421 is about 1657.3137738478.

Adding to 4552125421 its reverse (1245212554), we get a palindrome (5797337975).

The spelling of 4552125421 in words is "four billion, five hundred fifty-two million, one hundred twenty-five thousand, four hundred twenty-one".