28550553 has 8 divisors (see below), whose sum is σ = 38092416. Its totient is φ = 19021200.

The previous prime is 28550551. The next prime is 28550603. The reversal of 28550553 is 35505582.

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

It is not a de Polignac number, because 28550553 - 2¹ = 28550551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28550551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6048 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (4761552).

Almost surely, 2^28550553 is an apocalyptic number.

It is an amenable number.

28550553 is a deficient number, since it is larger than the sum of its proper divisors (9541863).

28550553 is a wasteful number, since it uses less digits than its factorization.

28550553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6255.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 28550553 is about 5343.2717505289. The cubic root of 28550553 is about 305.6362352584.

The spelling of 28550553 in words is "twenty-eight million, five hundred fifty thousand, five hundred fifty-three".