57666353 has 2 divisors, whose sum is σ = 57666354. Its totient is φ = 57666352.

The previous prime is 57666347. The next prime is 57666409. The reversal of 57666353 is 35366675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57638464 + 27889 = 7592^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 57666353 - 2⁸ = 57666097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57666353.

It is not a weakly prime, because it can be changed into another prime (57666953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28833176 + 28833177.

It is an arithmetic number, because the mean of its divisors is an integer number (28833177).

Almost surely, 2^57666353 is an apocalyptic number.

It is an amenable number.

57666353 is a deficient number, since it is larger than the sum of its proper divisors (1).

57666353 is an equidigital number, since it uses as much as digits as its factorization.

57666353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 41.

The square root of 57666353 is about 7593.8365139105. The cubic root of 57666353 is about 386.3439911882.

The spelling of 57666353 in words is "fifty-seven million, six hundred sixty-six thousand, three hundred fifty-three".