4050555557 has 2 divisors, whose sum is σ = 4050555558. Its totient is φ = 4050555556.

The previous prime is 4050555503. The next prime is 4050555571. The reversal of 4050555557 is 7555550504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3625123681 + 425431876 = 60209^2 + 20626^2 .

It is a cyclic number.

It is not a de Polignac number, because 4050555557 - 2¹⁶ = 4050490021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4050555757) 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, 2025277778 + 2025277779.

It is an arithmetic number, because the mean of its divisors is an integer number (2025277779).

Almost surely, 2^4050555557 is an apocalyptic number.

It is an amenable number.

4050555557 is a deficient number, since it is larger than the sum of its proper divisors (1).

4050555557 is an equidigital number, since it uses as much as digits as its factorization.

4050555557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437500, while the sum is 41.

The square root of 4050555557 is about 63643.9750251349. The cubic root of 4050555557 is about 1594.0607353065.

The spelling of 4050555557 in words is "four billion, fifty million, five hundred fifty-five thousand, five hundred fifty-seven".