57820193 has 2 divisors, whose sum is σ = 57820194. Its totient is φ = 57820192.

The previous prime is 57820157. The next prime is 57820201. The reversal of 57820193 is 39102875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49392784 + 8427409 = 7028^2 + 2903^2 .

It is a cyclic number.

It is not a de Polignac number, because 57820193 - 2¹⁰ = 57819169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57820153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28910096 + 28910097.

It is an arithmetic number, because the mean of its divisors is an integer number (28910097).

Almost surely, 2^57820193 is an apocalyptic number.

It is an amenable number.

57820193 is a deficient number, since it is larger than the sum of its proper divisors (1).

57820193 is an equidigital number, since it uses as much as digits as its factorization.

57820193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 57820193 is about 7603.9590346082. The cubic root of 57820193 is about 386.6872438349.

The spelling of 57820193 in words is "fifty-seven million, eight hundred twenty thousand, one hundred ninety-three".