28092550 has 24 divisors (see below), whose sum is σ = 52402896. Its totient is φ = 11204640.

The previous prime is 28092539. The next prime is 28092553. The reversal of 28092550 is 5529082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28092553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24592 + ... + 25708.

It is an arithmetic number, because the mean of its divisors is an integer number (2183454).

Almost surely, 2^28092550 is an apocalyptic number.

28092550 is a deficient number, since it is larger than the sum of its proper divisors (24310346).

28092550 is a wasteful number, since it uses less digits than its factorization.

28092550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 28092550 is about 5300.2405605784. The cubic root of 28092550 is about 303.9930962767.

The spelling of 28092550 in words is "twenty-eight million, ninety-two thousand, five hundred fifty".