557520697 has 2 divisors, whose sum is σ = 557520698. Its totient is φ = 557520696.

The previous prime is 557520581. The next prime is 557520731. The reversal of 557520697 is 796025755.

557520697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327573801 + 229946896 = 18099^2 + 15164^2 .

It is a cyclic number.

It is not a de Polignac number, because 557520697 - 2⁷ = 557520569 is a prime.

It is not a weakly prime, because it can be changed into another prime (557520497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278760348 + 278760349.

It is an arithmetic number, because the mean of its divisors is an integer number (278760349).

Almost surely, 2^557520697 is an apocalyptic number.

It is an amenable number.

557520697 is a deficient number, since it is larger than the sum of its proper divisors (1).

557520697 is an equidigital number, since it uses as much as digits as its factorization.

557520697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 661500, while the sum is 46.

The square root of 557520697 is about 23611.8761855131. The cubic root of 557520697 is about 823.0388419193.

The spelling of 557520697 in words is "five hundred fifty-seven million, five hundred twenty thousand, six hundred ninety-seven".