557670769 has 2 divisors, whose sum is σ = 557670770. Its totient is φ = 557670768.

The previous prime is 557670731. The next prime is 557670781. The reversal of 557670769 is 967076755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 500864400 + 56806369 = 22380^2 + 7537^2 .

It is a cyclic number.

It is not a de Polignac number, because 557670769 - 2¹¹ = 557668721 is a prime.

It is a super-2 number, since 2×557670769² = 621993373194102722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557610769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278835384 + 278835385.

It is an arithmetic number, because the mean of its divisors is an integer number (278835385).

Almost surely, 2^557670769 is an apocalyptic number.

It is an amenable number.

557670769 is a deficient number, since it is larger than the sum of its proper divisors (1).

557670769 is an equidigital number, since it uses as much as digits as its factorization.

557670769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2778300, while the sum is 52.

The square root of 557670769 is about 23615.0538640080. The cubic root of 557670769 is about 823.1126831267.

The spelling of 557670769 in words is "five hundred fifty-seven million, six hundred seventy thousand, seven hundred sixty-nine".