57066077 has 2 divisors, whose sum is σ = 57066078. Its totient is φ = 57066076.

The previous prime is 57066041. The next prime is 57066091. The reversal of 57066077 is 77066075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34351321 + 22714756 = 5861^2 + 4766^2 .

It is a cyclic number.

It is not a de Polignac number, because 57066077 - 2¹² = 57061981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57066077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57066007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28533038 + 28533039.

It is an arithmetic number, because the mean of its divisors is an integer number (28533039).

Almost surely, 2^57066077 is an apocalyptic number.

It is an amenable number.

57066077 is a deficient number, since it is larger than the sum of its proper divisors (1).

57066077 is an equidigital number, since it uses as much as digits as its factorization.

57066077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 57066077 is about 7554.2092240022. The cubic root of 57066077 is about 384.9987676353.

The spelling of 57066077 in words is "fifty-seven million, sixty-six thousand, seventy-seven".