10557109 has 2 divisors, whose sum is σ = 10557110. Its totient is φ = 10557108.

The previous prime is 10557101. The next prime is 10557139. The reversal of 10557109 is 90175501.

10557109 is digitally balanced in base 3, 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., 10304100 + 253009 = 3210^2 + 503^2 .

It is a cyclic number.

It is not a de Polignac number, because 10557109 - 2³ = 10557101 is a prime.

It is a super-2 number, since 2×10557109² = 222905100875762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10557101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278554 + 5278555.

It is an arithmetic number, because the mean of its divisors is an integer number (5278555).

Almost surely, 2^10557109 is an apocalyptic number.

It is an amenable number.

10557109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10557109 is an equidigital number, since it uses as much as digits as its factorization.

10557109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 10557109 is about 3249.1705095301. The cubic root of 10557109 is about 219.3722393410.

The spelling of 10557109 in words is "ten million, five hundred fifty-seven thousand, one hundred nine".