57543641 has 2 divisors, whose sum is σ = 57543642. Its totient is φ = 57543640.

The previous prime is 57543617. The next prime is 57543649. The reversal of 57543641 is 14634575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57441241 + 102400 = 7579^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 57543641 - 2²² = 53349337 is a prime.

It is a super-2 number, since 2×57543641² = 6622541239073762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57543649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28771820 + 28771821.

It is an arithmetic number, because the mean of its divisors is an integer number (28771821).

Almost surely, 2^57543641 is an apocalyptic number.

It is an amenable number.

57543641 is a deficient number, since it is larger than the sum of its proper divisors (1).

57543641 is an equidigital number, since it uses as much as digits as its factorization.

57543641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 35.

The square root of 57543641 is about 7585.7525005763. The cubic root of 57543641 is about 386.0697543675.

The spelling of 57543641 in words is "fifty-seven million, five hundred forty-three thousand, six hundred forty-one".