57800243 has 2 divisors, whose sum is σ = 57800244. Its totient is φ = 57800242.

The previous prime is 57800227. The next prime is 57800251. The reversal of 57800243 is 34200875.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57800243 - 2⁴ = 57800227 is a prime.

It is not a weakly prime, because it can be changed into another prime (57800273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28900121 + 28900122.

It is an arithmetic number, because the mean of its divisors is an integer number (28900122).

Almost surely, 2^57800243 is an apocalyptic number.

57800243 is a deficient number, since it is larger than the sum of its proper divisors (1).

57800243 is an equidigital number, since it uses as much as digits as its factorization.

57800243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 57800243 is about 7602.6471047919. The cubic root of 57800243 is about 386.6427651529.

The spelling of 57800243 in words is "fifty-seven million, eight hundred thousand, two hundred forty-three".