2522666081 has 16 divisors (see below), whose sum is σ = 2929463040. Its totient is φ = 2152241280.

The previous prime is 2522666053. The next prime is 2522666089. The reversal of 2522666081 is 1806662252.

It is a cyclic number.

It is not a de Polignac number, because 2522666081 - 2⁶ = 2522666017 is a prime.

It is a super-2 number, since 2×2522666081² = 12727688312455797122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2522666089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114425 + ... + 134678.

It is an arithmetic number, because the mean of its divisors is an integer number (183091440).

Almost surely, 2^2522666081 is an apocalyptic number.

It is an amenable number.

2522666081 is a deficient number, since it is larger than the sum of its proper divisors (406796959).

2522666081 is a wasteful number, since it uses less digits than its factorization.

2522666081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249176.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2522666081 is about 50226.1493746037. The cubic root of 2522666081 is about 1361.2981551270.

The spelling of 2522666081 in words is "two billion, five hundred twenty-two million, six hundred sixty-six thousand, eighty-one".