57640841 has 2 divisors, whose sum is σ = 57640842. Its totient is φ = 57640840.

The previous prime is 57640831. The next prime is 57640859. The reversal of 57640841 is 14804675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52258441 + 5382400 = 7229^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 57640841 - 2¹⁸ = 57378697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57640831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28820420 + 28820421.

It is an arithmetic number, because the mean of its divisors is an integer number (28820421).

Almost surely, 2^57640841 is an apocalyptic number.

It is an amenable number.

57640841 is a deficient number, since it is larger than the sum of its proper divisors (1).

57640841 is an equidigital number, since it uses as much as digits as its factorization.

57640841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 57640841 is about 7592.1565447506. The cubic root of 57640841 is about 386.2870090183.

The spelling of 57640841 in words is "fifty-seven million, six hundred forty thousand, eight hundred forty-one".