2525636081 has 2 divisors, whose sum is σ = 2525636082. Its totient is φ = 2525636080.

The previous prime is 2525636027. The next prime is 2525636107. The reversal of 2525636081 is 1806365252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1422798400 + 1102837681 = 37720^2 + 33209^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525636081 - 2²² = 2521441777 is a prime.

It is a super-2 number, since 2×2525636081² = 12757675227298077122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2525636011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262818040 + 1262818041.

It is an arithmetic number, because the mean of its divisors is an integer number (1262818041).

Almost surely, 2^2525636081 is an apocalyptic number.

It is an amenable number.

2525636081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525636081 is an equidigital number, since it uses as much as digits as its factorization.

2525636081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 2525636081 is about 50255.7069495595. The cubic root of 2525636081 is about 1361.8321761143.

The spelling of 2525636081 in words is "two billion, five hundred twenty-five million, six hundred thirty-six thousand, eighty-one".