2666525201 has 2 divisors, whose sum is σ = 2666525202. Its totient is φ = 2666525200.

The previous prime is 2666525179. The next prime is 2666525207. The reversal of 2666525201 is 1025256662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2476057600 + 190467601 = 49760^2 + 13801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666525201 - 2²² = 2662330897 is a prime.

It is a super-2 number, since 2×2666525201² = 14220713295136180802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2666525207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333262600 + 1333262601.

It is an arithmetic number, because the mean of its divisors is an integer number (1333262601).

Almost surely, 2^2666525201 is an apocalyptic number.

It is an amenable number.

2666525201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666525201 is an equidigital number, since it uses as much as digits as its factorization.

2666525201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 2666525201 is about 51638.4081958381. The cubic root of 2666525201 is about 1386.6980265639.

The spelling of 2666525201 in words is "two billion, six hundred sixty-six million, five hundred twenty-five thousand, two hundred one".