28551104 has 14 divisors (see below), whose sum is σ = 56656224. Its totient is φ = 14275520.

The previous prime is 28551101. The next prime is 28551139. The reversal of 28551104 is 40115582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28551101) 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 as a sum of consecutive naturals, namely, 222992 + ... + 223119.

Almost surely, 2^28551104 is an apocalyptic number.

It is an amenable number.

28551104 is a deficient number, since it is larger than the sum of its proper divisors (28105120).

28551104 is an equidigital number, since it uses as much as digits as its factorization.

28551104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446123 (or 446113 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 28551104 is about 5343.3233104502. The cubic root of 28551104 is about 305.6382014140.

Adding to 28551104 its reverse (40115582), we get a palindrome (68666686).

The spelling of 28551104 in words is "twenty-eight million, five hundred fifty-one thousand, one hundred four".