28525924 has 24 divisors (see below), whose sum is σ = 57697920. Its totient is φ = 12086976.

The previous prime is 28525909. The next prime is 28525933. The reversal of 28525924 is 42952582.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3232 + ... + 8215.

It is an arithmetic number, because the mean of its divisors is an integer number (2404080).

Almost surely, 2^28525924 is an apocalyptic number.

It is an amenable number.

28525924 is an abundant number, since it is smaller than the sum of its proper divisors (29171996).

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

28525924 is a wasteful number, since it uses less digits than its factorization.

28525924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11547 (or 11545 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 28525924 is about 5340.9665791877. The cubic root of 28525924 is about 305.5483247557.

The spelling of 28525924 in words is "twenty-eight million, five hundred twenty-five thousand, nine hundred twenty-four".