11525491 has 2 divisors, whose sum is σ = 11525492. Its totient is φ = 11525490.

The previous prime is 11525489. The next prime is 11525497. The reversal of 11525491 is 19452511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11525491 - 2¹ = 11525489 is a prime.

Together with 11525489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11525497) 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, 5762745 + 5762746.

It is an arithmetic number, because the mean of its divisors is an integer number (5762746).

Almost surely, 2^11525491 is an apocalyptic number.

11525491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11525491 is an equidigital number, since it uses as much as digits as its factorization.

11525491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 28.

The square root of 11525491 is about 3394.9213540228. The cubic root of 11525491 is about 225.8845247652.

The spelling of 11525491 in words is "eleven million, five hundred twenty-five thousand, four hundred ninety-one".