25532613 has 12 divisors (see below), whose sum is σ = 36953280. Its totient is φ = 16988136.

The previous prime is 25532581. The next prime is 25532621. The reversal of 25532613 is 31623552.

It is not a de Polignac number, because 25532613 - 2⁵ = 25532581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25532413) 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 in 11 ways as a sum of consecutive naturals, for example, 2548 + ... + 7586.

It is an arithmetic number, because the mean of its divisors is an integer number (3079440).

Almost surely, 2^25532613 is an apocalyptic number.

It is an amenable number.

25532613 is a deficient number, since it is larger than the sum of its proper divisors (11420667).

25532613 is a wasteful number, since it uses less digits than its factorization.

25532613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608 (or 5605 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 25532613 is about 5052.9806055436. The cubic root of 25532613 is about 294.4636928308.

The spelling of 25532613 in words is "twenty-five million, five hundred thirty-two thousand, six hundred thirteen".