28800550 has 48 divisors (see below), whose sum is σ = 58603392. Its totient is φ = 10483200.

The previous prime is 28800547. The next prime is 28800559. The reversal of 28800550 is 5500882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28800559) 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, 25804 + ... + 26896.

It is an arithmetic number, because the mean of its divisors is an integer number (1220904).

Almost surely, 2^28800550 is an apocalyptic number.

28800550 is an abundant number, since it is smaller than the sum of its proper divisors (29802842).

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

28800550 is a wasteful number, since it uses less digits than its factorization.

28800550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 28800550 is about 5366.6143889793. The cubic root of 28800550 is about 306.5257241959.

The spelling of 28800550 in words is "twenty-eight million, eight hundred thousand, five hundred fifty".