57291427 has 2 divisors, whose sum is σ = 57291428. Its totient is φ = 57291426.

The previous prime is 57291397. The next prime is 57291457. The reversal of 57291427 is 72419275.

57291427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (57291397) and next prime (57291457).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57291427 is a prime.

It is not a weakly prime, because it can be changed into another prime (57291457) 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, 28645713 + 28645714.

It is an arithmetic number, because the mean of its divisors is an integer number (28645714).

Almost surely, 2^57291427 is an apocalyptic number.

57291427 is a deficient number, since it is larger than the sum of its proper divisors (1).

57291427 is an equidigital number, since it uses as much as digits as its factorization.

57291427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The square root of 57291427 is about 7569.1100533682. The cubic root of 57291427 is about 385.5048798730.

The spelling of 57291427 in words is "fifty-seven million, two hundred ninety-one thousand, four hundred twenty-seven".