57768071 has 2 divisors, whose sum is σ = 57768072. Its totient is φ = 57768070.

The previous prime is 57768043. The next prime is 57768077. The reversal of 57768071 is 17086775.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57768071 is a prime.

It is a super-2 number, since 2×57768071² = 6674300054122082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57768077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28884035 + 28884036.

It is an arithmetic number, because the mean of its divisors is an integer number (28884036).

Almost surely, 2^57768071 is an apocalyptic number.

57768071 is a deficient number, since it is larger than the sum of its proper divisors (1).

57768071 is an equidigital number, since it uses as much as digits as its factorization.

57768071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 57768071 is about 7600.5309682943. The cubic root of 57768071 is about 386.5710158603.

The spelling of 57768071 in words is "fifty-seven million, seven hundred sixty-eight thousand, seventy-one".