25088491 has 2 divisors, whose sum is σ = 25088492. Its totient is φ = 25088490.

The previous prime is 25088473. The next prime is 25088513. The reversal of 25088491 is 19488052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25088491 - 2⁷ = 25088363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25088491.

It is not a weakly prime, because it can be changed into another prime (25088191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12544245 + 12544246.

It is an arithmetic number, because the mean of its divisors is an integer number (12544246).

Almost surely, 2^25088491 is an apocalyptic number.

25088491 is a deficient number, since it is larger than the sum of its proper divisors (1).

25088491 is an equidigital number, since it uses as much as digits as its factorization.

25088491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 25088491 is about 5008.8412831712. The cubic root of 25088491 is about 292.7463665673.

The spelling of 25088491 in words is "twenty-five million, eighty-eight thousand, four hundred ninety-one".