28526550 has 48 divisors (see below), whose sum is σ = 76193040. Its totient is φ = 7021440.

The previous prime is 28526549. The next prime is 28526557. The reversal of 28526550 is 5562582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28526557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5365 + ... + 9264.

It is an arithmetic number, because the mean of its divisors is an integer number (1587355).

Almost surely, 2^28526550 is an apocalyptic number.

28526550 is an abundant number, since it is smaller than the sum of its proper divisors (47666490).

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

28526550 is a wasteful number, since it uses less digits than its factorization.

28526550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14657 (or 14652 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 28526550 is about 5341.0251824907. The cubic root of 28526550 is about 305.5505598204.

The spelling of 28526550 in words is "twenty-eight million, five hundred twenty-six thousand, five hundred fifty".