57247427 has 2 divisors, whose sum is σ = 57247428. Its totient is φ = 57247426.

The previous prime is 57247417. The next prime is 57247447. The reversal of 57247427 is 72474275.

57247427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57247427 - 2¹² = 57243331 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57247417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28623713 + 28623714.

It is an arithmetic number, because the mean of its divisors is an integer number (28623714).

Almost surely, 2^57247427 is an apocalyptic number.

57247427 is a deficient number, since it is larger than the sum of its proper divisors (1).

57247427 is an equidigital number, since it uses as much as digits as its factorization.

57247427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109760, while the sum is 38.

The square root of 57247427 is about 7566.2029446744. The cubic root of 57247427 is about 385.4061649355.

The spelling of 57247427 in words is "fifty-seven million, two hundred forty-seven thousand, four hundred twenty-seven".