28551152 has 40 divisors (see below), whose sum is σ = 63555456. Its totient is φ = 12171456.

The previous prime is 28551151. The next prime is 28551157. The reversal of 28551152 is 25115582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28551151) 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, 24863 + ... + 25985.

Almost surely, 2^28551152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28551152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31777728).

28551152 is an abundant number, since it is smaller than the sum of its proper divisors (35004304).

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

28551152 is a wasteful number, since it uses less digits than its factorization.

28551152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1359 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The square root of 28551152 is about 5343.3278020350. The cubic root of 28551152 is about 305.6383726931.

The spelling of 28551152 in words is "twenty-eight million, five hundred fifty-one thousand, one hundred fifty-two".