57093247 has 2 divisors, whose sum is σ = 57093248. Its totient is φ = 57093246.

The previous prime is 57093193. The next prime is 57093263. The reversal of 57093247 is 74239075.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57093247 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 (57093947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28546623 + 28546624.

It is an arithmetic number, because the mean of its divisors is an integer number (28546624).

Almost surely, 2^57093247 is an apocalyptic number.

57093247 is a deficient number, since it is larger than the sum of its proper divisors (1).

57093247 is an equidigital number, since it uses as much as digits as its factorization.

57093247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 57093247 is about 7556.0073451526. The cubic root of 57093247 is about 385.0598591360.

The spelling of 57093247 in words is "fifty-seven million, ninety-three thousand, two hundred forty-seven".