557044069 has 2 divisors, whose sum is σ = 557044070. Its totient is φ = 557044068.

The previous prime is 557044067. The next prime is 557044091. The reversal of 557044069 is 960440755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282744225 + 274299844 = 16815^2 + 16562^2 .

It is a cyclic number.

It is not a de Polignac number, because 557044069 - 2¹ = 557044067 is a prime.

It is a super-2 number, since 2×557044069² = 620596189616153522, which contains 22 as substring.

Together with 557044067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557044067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278522034 + 278522035.

It is an arithmetic number, because the mean of its divisors is an integer number (278522035).

Almost surely, 2^557044069 is an apocalyptic number.

It is an amenable number.

557044069 is a deficient number, since it is larger than the sum of its proper divisors (1).

557044069 is an equidigital number, since it uses as much as digits as its factorization.

557044069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 557044069 is about 23601.7810556746. The cubic root of 557044069 is about 822.8042346656.

The spelling of 557044069 in words is "five hundred fifty-seven million, forty-four thousand, sixty-nine".