2525527991 has 16 divisors (see below), whose sum is σ = 2924478720. Its totient is φ = 2136214080.

The previous prime is 2525527957. The next prime is 2525527993. The reversal of 2525527991 is 1997255252.

It is not a de Polignac number, because 2525527991 - 2²⁶ = 2458419127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525527993) 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 in 15 ways as a sum of consecutive naturals, for example, 337076 + ... + 344486.

It is an arithmetic number, because the mean of its divisors is an integer number (182779920).

Almost surely, 2^2525527991 is an apocalyptic number.

2525527991 is a deficient number, since it is larger than the sum of its proper divisors (398950729).

2525527991 is an equidigital number, since it uses as much as digits as its factorization.

2525527991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054.

The product of its digits is 567000, while the sum is 47.

The square root of 2525527991 is about 50254.6315377996. The cubic root of 2525527991 is about 1361.8127483298.

The spelling of 2525527991 in words is "two billion, five hundred twenty-five million, five hundred twenty-seven thousand, nine hundred ninety-one".