25516632 has 16 divisors (see below), whose sum is σ = 63791640. Its totient is φ = 8505536.

The previous prime is 25516597. The next prime is 25516633. The reversal of 25516632 is 23661552.

It is a self number, because there is not a number n which added to its sum of digits gives 25516632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25516633) 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 3 ways as a sum of consecutive naturals, for example, 531573 + ... + 531620.

Almost surely, 2^25516632 is an apocalyptic number.

It is an amenable number.

25516632 is an abundant number, since it is smaller than the sum of its proper divisors (38275008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25516632 is a wasteful number, since it uses less digits than its factorization.

25516632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063202 (or 1063198 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 25516632 is about 5051.3990141346. The cubic root of 25516632 is about 294.4022445383.

The spelling of 25516632 in words is "twenty-five million, five hundred sixteen thousand, six hundred thirty-two".