71055757 has 2 divisors, whose sum is σ = 71055758. Its totient is φ = 71055756.

The previous prime is 71055707. The next prime is 71055769. The reversal of 71055757 is 75755017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68906601 + 2149156 = 8301^2 + 1466^2 .

It is a cyclic number.

It is not a de Polignac number, because 71055757 - 2¹⁵ = 71022989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71055707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35527878 + 35527879.

It is an arithmetic number, because the mean of its divisors is an integer number (35527879).

Almost surely, 2^71055757 is an apocalyptic number.

It is an amenable number.

71055757 is a deficient number, since it is larger than the sum of its proper divisors (1).

71055757 is an equidigital number, since it uses as much as digits as its factorization.

71055757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42875, while the sum is 37.

The square root of 71055757 is about 8429.4576931141. The cubic root of 71055757 is about 414.1901407471.

The spelling of 71055757 in words is "seventy-one million, fifty-five thousand, seven hundred fifty-seven".