57058247 has 2 divisors, whose sum is σ = 57058248. Its totient is φ = 57058246.

The previous prime is 57058223. The next prime is 57058277. The reversal of 57058247 is 74285075.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57058247 - 2⁸ = 57057991 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57058247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57058207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28529123 + 28529124.

It is an arithmetic number, because the mean of its divisors is an integer number (28529124).

Almost surely, 2^57058247 is an apocalyptic number.

57058247 is a deficient number, since it is larger than the sum of its proper divisors (1).

57058247 is an equidigital number, since it uses as much as digits as its factorization.

57058247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 57058247 is about 7553.6909521108. The cubic root of 57058247 is about 384.9811583515.

The spelling of 57058247 in words is "fifty-seven million, fifty-eight thousand, two hundred forty-seven".