57000443 has 2 divisors, whose sum is σ = 57000444. Its totient is φ = 57000442.

The previous prime is 57000407. The next prime is 57000467. The reversal of 57000443 is 34400075.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57000443 - 2⁶ = 57000379 is a prime.

It is not a weakly prime, because it can be changed into another prime (57002443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28500221 + 28500222.

It is an arithmetic number, because the mean of its divisors is an integer number (28500222).

Almost surely, 2^57000443 is an apocalyptic number.

57000443 is a deficient number, since it is larger than the sum of its proper divisors (1).

57000443 is an equidigital number, since it uses as much as digits as its factorization.

57000443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 57000443 is about 7549.8637736055. The cubic root of 57000443 is about 384.8511101345.

The spelling of 57000443 in words is "fifty-seven million, four hundred forty-three", and thus it is an aban number.