57042743 has 2 divisors, whose sum is σ = 57042744. Its totient is φ = 57042742.

The previous prime is 57042721. The next prime is 57042751. The reversal of 57042743 is 34724075.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57042743 - 2⁸ = 57042487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57042703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28521371 + 28521372.

It is an arithmetic number, because the mean of its divisors is an integer number (28521372).

Almost surely, 2^57042743 is an apocalyptic number.

57042743 is a deficient number, since it is larger than the sum of its proper divisors (1).

57042743 is an equidigital number, since it uses as much as digits as its factorization.

57042743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 57042743 is about 7552.6646291226. The cubic root of 57042743 is about 384.9462858666.

The spelling of 57042743 in words is "fifty-seven million, forty-two thousand, seven hundred forty-three".