28932552 has 168 divisors, whose sum is σ = 91582470. Its totient is φ = 8553600.

The previous prime is 28932539. The next prime is 28932569. The reversal of 28932552 is 25523982.

28932552 is a `hidden beast` number, since 289 + 325 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28579716 + 352836 = 5346^2 + 594^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 705652 + ... + 705692.

Almost surely, 2^28932552 is an apocalyptic number.

28932552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28932552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45791235).

28932552 is an abundant number, since it is smaller than the sum of its proper divisors (62649918).

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

28932552 is a wasteful number, since it uses less digits than its factorization.

28932552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 57 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 28932552 is about 5378.8987720536. The cubic root of 28932552 is about 306.9933118965.

It can be divided in two parts, 2893 and 2552, that added together give a palindrome (5445).

The spelling of 28932552 in words is "twenty-eight million, nine hundred thirty-two thousand, five hundred fifty-two".