57426247 has 2 divisors, whose sum is σ = 57426248. Its totient is φ = 57426246.

The previous prime is 57426211. The next prime is 57426283. The reversal of 57426247 is 74262475.

It is a balanced prime because it is at equal distance from previous prime (57426211) and next prime (57426283).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57426247 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 (57426547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28713123 + 28713124.

It is an arithmetic number, because the mean of its divisors is an integer number (28713124).

Almost surely, 2^57426247 is an apocalyptic number.

57426247 is a deficient number, since it is larger than the sum of its proper divisors (1).

57426247 is an equidigital number, since it uses as much as digits as its factorization.

57426247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 37.

The square root of 57426247 is about 7578.0107548089. The cubic root of 57426247 is about 385.8070370780.

The spelling of 57426247 in words is "fifty-seven million, four hundred twenty-six thousand, two hundred forty-seven".