28195552 has 48 divisors (see below), whose sum is σ = 69213312. Its totient is φ = 10984320.

The previous prime is 28195507. The next prime is 28195561. The reversal of 28195552 is 25559182.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3258 + ... + 8185.

It is an arithmetic number, because the mean of its divisors is an integer number (1441944).

Almost surely, 2^28195552 is an apocalyptic number.

28195552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28195552 is an abundant number, since it is smaller than the sum of its proper divisors (41017760).

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

28195552 is a wasteful number, since it uses less digits than its factorization.

28195552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11471 (or 11463 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

The square root of 28195552 is about 5309.9483989960. The cubic root of 28195552 is about 304.3641757511.

The spelling of 28195552 in words is "twenty-eight million, one hundred ninety-five thousand, five hundred fifty-two".