57740057 has 2 divisors, whose sum is σ = 57740058. Its totient is φ = 57740056.

The previous prime is 57739999. The next prime is 57740063. The reversal of 57740057 is 75004775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50183056 + 7557001 = 7084^2 + 2749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57740057 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57739999 and 57740026.

It is not a weakly prime, because it can be changed into another prime (57740087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28870028 + 28870029.

It is an arithmetic number, because the mean of its divisors is an integer number (28870029).

Almost surely, 2^57740057 is an apocalyptic number.

It is an amenable number.

57740057 is a deficient number, since it is larger than the sum of its proper divisors (1).

57740057 is an equidigital number, since it uses as much as digits as its factorization.

57740057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 57740057 is about 7598.6878472536. The cubic root of 57740057 is about 386.5085179484.

The spelling of 57740057 in words is "fifty-seven million, seven hundred forty thousand, fifty-seven".