57314281 has 2 divisors, whose sum is σ = 57314282. Its totient is φ = 57314280.

The previous prime is 57314267. The next prime is 57314297. The reversal of 57314281 is 18241375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56475225 + 839056 = 7515^2 + 916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57314281 is a prime.

It is a super-2 number, since 2×57314281² = 6569853613093922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57314261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28657140 + 28657141.

It is an arithmetic number, because the mean of its divisors is an integer number (28657141).

Almost surely, 2^57314281 is an apocalyptic number.

It is an amenable number.

57314281 is a deficient number, since it is larger than the sum of its proper divisors (1).

57314281 is an equidigital number, since it uses as much as digits as its factorization.

57314281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 57314281 is about 7570.6195915526. The cubic root of 57314281 is about 385.5561333662.

The spelling of 57314281 in words is "fifty-seven million, three hundred fourteen thousand, two hundred eighty-one".