557069 has 2 divisors, whose sum is σ = 557070. Its totient is φ = 557068.

The previous prime is 557059. The next prime is 557087. The reversal of 557069 is 960755.

Added to its reverse (960755) it gives a square (1517824 = 1232²).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316969 + 240100 = 563^2 + 490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557069 is a prime.

It is a super-2 number, since 2×557069² = 620651741522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278534 + 278535.

It is an arithmetic number, because the mean of its divisors is an integer number (278535).

2⁵⁵⁷⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

557069 is a deficient number, since it is larger than the sum of its proper divisors (1).

557069 is an equidigital number, since it uses as much as digits as its factorization.

557069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 557069 is about 746.3705514019. The cubic root of 557069 is about 82.2816509593.

Adding to 557069 its reverse (960755), we get a square (1517824 = 1232²).

The spelling of 557069 in words is "five hundred fifty-seven thousand, sixty-nine".