28525894 has 8 divisors (see below), whose sum is σ = 42935760. Its totient is φ = 14213976.

The previous prime is 28525891. The next prime is 28525907. The reversal of 28525894 is 49852582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28525894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28525891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23754 + ... + 24925.

It is an arithmetic number, because the mean of its divisors is an integer number (5366970).

Almost surely, 2^28525894 is an apocalyptic number.

28525894 is a deficient number, since it is larger than the sum of its proper divisors (14409866).

28525894 is a wasteful number, since it uses less digits than its factorization.

28525894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48974.

The product of its digits is 230400, while the sum is 43.

The square root of 28525894 is about 5340.9637707066. The cubic root of 28525894 is about 305.5482176432.

The spelling of 28525894 in words is "twenty-eight million, five hundred twenty-five thousand, eight hundred ninety-four".