557052121 has 2 divisors, whose sum is σ = 557052122. Its totient is φ = 557052120.

The previous prime is 557052109. The next prime is 557052173. The reversal of 557052121 is 121250755.

557052121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 545923225 + 11128896 = 23365^2 + 3336^2 .

It is a cyclic number.

It is not a de Polignac number, because 557052121 - 2⁹ = 557051609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 557052121.

It is not a weakly prime, because it can be changed into another prime (557052191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278526060 + 278526061.

It is an arithmetic number, because the mean of its divisors is an integer number (278526061).

Almost surely, 2^557052121 is an apocalyptic number.

It is an amenable number.

557052121 is a deficient number, since it is larger than the sum of its proper divisors (1).

557052121 is an equidigital number, since it uses as much as digits as its factorization.

557052121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 557052121 is about 23601.9516354051. The cubic root of 557052121 is about 822.8081991561.

The spelling of 557052121 in words is "five hundred fifty-seven million, fifty-two thousand, one hundred twenty-one".