28525835 has 16 divisors (see below), whose sum is σ = 37285920. Its totient is φ = 20824320.

The previous prime is 28525831. The next prime is 28525837. The reversal of 28525835 is 53852582.

It is not a de Polignac number, because 28525835 - 2² = 28525831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28525831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3320 + ... + 8250.

It is an arithmetic number, because the mean of its divisors is an integer number (2330370).

Almost surely, 2^28525835 is an apocalyptic number.

28525835 is a deficient number, since it is larger than the sum of its proper divisors (8760085).

28525835 is a wasteful number, since it uses less digits than its factorization.

28525835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5038.

The product of its digits is 96000, while the sum is 38.

The square root of 28525835 is about 5340.9582473560. The cubic root of 28525835 is about 305.5480069883.

The spelling of 28525835 in words is "twenty-eight million, five hundred twenty-five thousand, eight hundred thirty-five".