57816061 has 2 divisors, whose sum is σ = 57816062. Its totient is φ = 57816060.

The previous prime is 57816049. The next prime is 57816097. The reversal of 57816061 is 16061875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49084036 + 8732025 = 7006^2 + 2955^2 .

It is a cyclic number.

It is not a de Polignac number, because 57816061 - 2⁵ = 57816029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57816041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28908030 + 28908031.

It is an arithmetic number, because the mean of its divisors is an integer number (28908031).

Almost surely, 2^57816061 is an apocalyptic number.

It is an amenable number.

57816061 is a deficient number, since it is larger than the sum of its proper divisors (1).

57816061 is an equidigital number, since it uses as much as digits as its factorization.

57816061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 57816061 is about 7603.6873291844. The cubic root of 57816061 is about 386.6780323486.

The spelling of 57816061 in words is "fifty-seven million, eight hundred sixteen thousand, sixty-one".