28525629 has 12 divisors (see below), whose sum is σ = 41806688. Its totient is φ = 17288040.

The previous prime is 28525621. The next prime is 28525639. The reversal of 28525629 is 92652582.

It is not a de Polignac number, because 28525629 - 2³ = 28525621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28525621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38929 + ... + 39654.

Almost surely, 2^28525629 is an apocalyptic number.

It is an amenable number.

28525629 is a deficient number, since it is larger than the sum of its proper divisors (13281059).

28525629 is a wasteful number, since it uses less digits than its factorization.

28525629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78608 (or 78597 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 28525629 is about 5340.9389623923. The cubic root of 28525629 is about 305.5472714791.

The spelling of 28525629 in words is "twenty-eight million, five hundred twenty-five thousand, six hundred twenty-nine".