28550068 has 6 divisors (see below), whose sum is σ = 49962626. Its totient is φ = 14275032.

The previous prime is 28550057. The next prime is 28550069. The reversal of 28550068 is 86005582.

28550068 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in only one way, i.e., 23406244 + 5143824 = 4838^2 + 2268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3568755 + ... + 3568762.

Almost surely, 2^28550068 is an apocalyptic number.

It is an amenable number.

28550068 is a deficient number, since it is larger than the sum of its proper divisors (21412558).

28550068 is a wasteful number, since it uses less digits than its factorization.

28550068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7137521 (or 7137519 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 28550068 is about 5343.2263661574. The cubic root of 28550068 is about 305.6345045925.

The spelling of 28550068 in words is "twenty-eight million, five hundred fifty thousand, sixty-eight".