28551102 has 8 divisors (see below), whose sum is σ = 57102216. Its totient is φ = 9517032.

The previous prime is 28551101. The next prime is 28551139. The reversal of 28551102 is 20115582.

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

28551102 is an admirable number.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2379253 + ... + 2379264.

It is an arithmetic number, because the mean of its divisors is an integer number (7137777).

Almost surely, 2^28551102 is an apocalyptic number.

28551102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28551102 is a wasteful number, since it uses less digits than its factorization.

28551102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758522.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 28551102 is about 5343.3231233007. The cubic root of 28551102 is about 305.6381942773.

Adding to 28551102 its reverse (20115582), we get a palindrome (48666684).

The spelling of 28551102 in words is "twenty-eight million, five hundred fifty-one thousand, one hundred two".