57145733 has 2 divisors, whose sum is σ = 57145734. Its totient is φ = 57145732.

The previous prime is 57145729. The next prime is 57145771. The reversal of 57145733 is 33754175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 13082689 = 6638^2 + 3617^2 .

It is a cyclic number.

It is not a de Polignac number, because 57145733 - 2² = 57145729 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57145693 and 57145702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57145703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28572866 + 28572867.

It is an arithmetic number, because the mean of its divisors is an integer number (28572867).

Almost surely, 2^57145733 is an apocalyptic number.

It is an amenable number.

57145733 is a deficient number, since it is larger than the sum of its proper divisors (1).

57145733 is an equidigital number, since it uses as much as digits as its factorization.

57145733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 35.

The square root of 57145733 is about 7559.4796778614. The cubic root of 57145733 is about 385.1778185729.

The spelling of 57145733 in words is "fifty-seven million, one hundred forty-five thousand, seven hundred thirty-three".