28550353 has 6 divisors (see below), whose sum is σ = 30915654. Its totient is φ = 26354016.

The previous prime is 28550351. The next prime is 28550371. The reversal of 28550353 is 35305582.

It can be written as a sum of positive squares in 3 ways, for example, as 4028049 + 24522304 = 2007^2 + 4952^2 .

It is not a de Polignac number, because 28550353 - 2¹ = 28550351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84300 + ... + 84637.

It is an arithmetic number, because the mean of its divisors is an integer number (5152609).

Almost surely, 2^28550353 is an apocalyptic number.

It is an amenable number.

28550353 is a deficient number, since it is larger than the sum of its proper divisors (2365301).

28550353 is a wasteful number, since it uses less digits than its factorization.

28550353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168963 (or 168950 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 28550353 is about 5343.2530353709. The cubic root of 28550353 is about 305.6355215841.

The spelling of 28550353 in words is "twenty-eight million, five hundred fifty thousand, three hundred fifty-three".