28525946 has 12 divisors (see below), whose sum is σ = 43209582. Its totient is φ = 14124096.

The previous prime is 28525933. The next prime is 28525951. The reversal of 28525946 is 64952582.

It can be written as a sum of positive squares in 3 ways, for example, as 1600225 + 26925721 = 1265^2 + 5189^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24980 + ... + 26096.

Almost surely, 2^28525946 is an apocalyptic number.

28525946 is a deficient number, since it is larger than the sum of its proper divisors (14683636).

28525946 is a wasteful number, since it uses less digits than its factorization.

28525946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1232 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 28525946 is about 5340.9686387396. The cubic root of 28525946 is about 305.5484033049.

The spelling of 28525946 in words is "twenty-eight million, five hundred twenty-five thousand, nine hundred forty-six".