57030073 has 2 divisors, whose sum is σ = 57030074. Its totient is φ = 57030072.

The previous prime is 57030013. The next prime is 57030079. The reversal of 57030073 is 37003075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31899904 + 25130169 = 5648^2 + 5013^2 .

It is a cyclic number.

It is not a de Polignac number, because 57030073 - 2⁹ = 57029561 is a prime.

It is not a weakly prime, because it can be changed into another prime (57030079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28515036 + 28515037.

It is an arithmetic number, because the mean of its divisors is an integer number (28515037).

Almost surely, 2^57030073 is an apocalyptic number.

It is an amenable number.

57030073 is a deficient number, since it is larger than the sum of its proper divisors (1).

57030073 is an equidigital number, since it uses as much as digits as its factorization.

57030073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2205, while the sum is 25.

The square root of 57030073 is about 7551.8258057241. The cubic root of 57030073 is about 384.9177830847.

The spelling of 57030073 in words is "fifty-seven million, thirty thousand, seventy-three".