57544211657 has 2 divisors, whose sum is σ = 57544211658. Its totient is φ = 57544211656.

The previous prime is 57544211653. The next prime is 57544211689. The reversal of 57544211657 is 75611244575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40068429241 + 17475782416 = 200171^2 + 132196^2 .

It is a cyclic number.

It is not a de Polignac number, because 57544211657 - 2² = 57544211653 is a prime.

It is a super-2 number, since 2×57544211657² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57544211651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28772105828 + 28772105829.

It is an arithmetic number, because the mean of its divisors is an integer number (28772105829).

Almost surely, 2^57544211657 is an apocalyptic number.

It is an amenable number.

57544211657 is a deficient number, since it is larger than the sum of its proper divisors (1).

57544211657 is an equidigital number, since it uses as much as digits as its factorization.

57544211657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176000, while the sum is 47.

The spelling of 57544211657 in words is "fifty-seven billion, five hundred forty-four million, two hundred eleven thousand, six hundred fifty-seven".