57641281 has 2 divisors, whose sum is σ = 57641282. Its totient is φ = 57641280.

The previous prime is 57641267. The next prime is 57641291. The reversal of 57641281 is 18214675.

57641281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49575681 + 8065600 = 7041^2 + 2840^2 .

It is a cyclic number.

It is not a de Polignac number, because 57641281 - 2²¹ = 55544129 is a prime.

It is a super-2 number, since 2×57641281² = 6645034550641922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57641251) 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, 28820640 + 28820641.

It is an arithmetic number, because the mean of its divisors is an integer number (28820641).

Almost surely, 2^57641281 is an apocalyptic number.

It is an amenable number.

57641281 is a deficient number, since it is larger than the sum of its proper divisors (1).

57641281 is an equidigital number, since it uses as much as digits as its factorization.

57641281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 34.

The square root of 57641281 is about 7592.1855219693. The cubic root of 57641281 is about 386.2879919200.

The spelling of 57641281 in words is "fifty-seven million, six hundred forty-one thousand, two hundred eighty-one".