57661482577 has 2 divisors, whose sum is σ = 57661482578. Its totient is φ = 57661482576.

The previous prime is 57661482523. The next prime is 57661482607. The reversal of 57661482577 is 77528416675.

57661482577 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., 33211782081 + 24449700496 = 182241^2 + 156364^2 .

It is a cyclic number.

It is not a de Polignac number, because 57661482577 - 2²⁷ = 57527264849 is a prime.

It is not a weakly prime, because it can be changed into another prime (57661482377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28830741288 + 28830741289.

It is an arithmetic number, because the mean of its divisors is an integer number (28830741289).

Almost surely, 2^57661482577 is an apocalyptic number.

It is an amenable number.

57661482577 is a deficient number, since it is larger than the sum of its proper divisors (1).

57661482577 is an equidigital number, since it uses as much as digits as its factorization.

57661482577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 58.

The spelling of 57661482577 in words is "fifty-seven billion, six hundred sixty-one million, four hundred eighty-two thousand, five hundred seventy-seven".