57447443 has 2 divisors, whose sum is σ = 57447444. Its totient is φ = 57447442.

The previous prime is 57447427. The next prime is 57447451. The reversal of 57447443 is 34474475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57447443 - 2⁴ = 57447427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57447397 and 57447406.

It is not a weakly prime, because it can be changed into another prime (57447413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28723721 + 28723722.

It is an arithmetic number, because the mean of its divisors is an integer number (28723722).

Almost surely, 2^57447443 is an apocalyptic number.

57447443 is a deficient number, since it is larger than the sum of its proper divisors (1).

57447443 is an equidigital number, since it uses as much as digits as its factorization.

57447443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 38.

The square root of 57447443 is about 7579.4091458372. The cubic root of 57447443 is about 385.8544983028.

The spelling of 57447443 in words is "fifty-seven million, four hundred forty-seven thousand, four hundred forty-three".