2525507591 has 2 divisors, whose sum is σ = 2525507592. Its totient is φ = 2525507590.

The previous prime is 2525507549. The next prime is 2525507639. The reversal of 2525507591 is 1957055252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2525507591 - 2⁶ = 2525507527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525507191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262753795 + 1262753796.

It is an arithmetic number, because the mean of its divisors is an integer number (1262753796).

Almost surely, 2^2525507591 is an apocalyptic number.

2525507591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525507591 is an equidigital number, since it uses as much as digits as its factorization.

2525507591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157500, while the sum is 41.

The square root of 2525507591 is about 50254.4285710225. The cubic root of 2525507591 is about 1361.8090816306.

The spelling of 2525507591 in words is "two billion, five hundred twenty-five million, five hundred seven thousand, five hundred ninety-one".