28525937 has 16 divisors (see below), whose sum is σ = 32417280. Its totient is φ = 24864000.

The previous prime is 28525933. The next prime is 28525951. The reversal of 28525937 is 73952582.

It is a cyclic number.

It is not a de Polignac number, because 28525937 - 2² = 28525933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28525894 and 28525903.

It is not an unprimeable number, because it can be changed into a prime (28525933) 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 15 ways as a sum of consecutive naturals, for example, 70937 + ... + 71337.

It is an arithmetic number, because the mean of its divisors is an integer number (2026080).

Almost surely, 2^28525937 is an apocalyptic number.

It is an amenable number.

28525937 is a deficient number, since it is larger than the sum of its proper divisors (3891343).

28525937 is a wasteful number, since it uses less digits than its factorization.

28525937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664.

The product of its digits is 151200, while the sum is 41.

The square root of 28525937 is about 5340.9677961957. The cubic root of 28525937 is about 305.5483711711.

The spelling of 28525937 in words is "twenty-eight million, five hundred twenty-five thousand, nine hundred thirty-seven".