2180725571 has 2 divisors, whose sum is σ = 2180725572. Its totient is φ = 2180725570.

The previous prime is 2180725553. The next prime is 2180725583. The reversal of 2180725571 is 1755270812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2180725571 is a prime.

It is not a weakly prime, because it can be changed into another prime (2180725511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090362785 + 1090362786.

It is an arithmetic number, because the mean of its divisors is an integer number (1090362786).

Almost surely, 2^2180725571 is an apocalyptic number.

2180725571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180725571 is an equidigital number, since it uses as much as digits as its factorization.

2180725571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 2180725571 is about 46698.2394850170. The cubic root of 2180725571 is about 1296.7820947051.

The spelling of 2180725571 in words is "two billion, one hundred eighty million, seven hundred twenty-five thousand, five hundred seventy-one".