4052500121 has 2 divisors, whose sum is σ = 4052500122. Its totient is φ = 4052500120.

The previous prime is 4052500097. The next prime is 4052500163. The reversal of 4052500121 is 1210052504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2641446025 + 1411054096 = 51395^2 + 37564^2 .

It is a cyclic number.

It is not a de Polignac number, because 4052500121 - 2⁶ = 4052500057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4052500093 and 4052500102.

It is not a weakly prime, because it can be changed into another prime (4052503121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2026250060 + 2026250061.

It is an arithmetic number, because the mean of its divisors is an integer number (2026250061).

Almost surely, 2^4052500121 is an apocalyptic number.

It is an amenable number.

4052500121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4052500121 is an equidigital number, since it uses as much as digits as its factorization.

4052500121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 4052500121 is about 63659.2500819794. The cubic root of 4052500121 is about 1594.3157832189.

Adding to 4052500121 its reverse (1210052504), we get a palindrome (5262552625).

The spelling of 4052500121 in words is "four billion, fifty-two million, five hundred thousand, one hundred twenty-one".