28150550 has 12 divisors (see below), whose sum is σ = 52360116. Its totient is φ = 11260200.

The previous prime is 28150547. The next prime is 28150567. The reversal of 28150550 is 5505182.

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 5 ways as a sum of consecutive naturals, for example, 281456 + ... + 281555.

It is an arithmetic number, because the mean of its divisors is an integer number (4363343).

Almost surely, 2^28150550 is an apocalyptic number.

28150550 is a deficient number, since it is larger than the sum of its proper divisors (24209566).

28150550 is a wasteful number, since it uses less digits than its factorization.

28150550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563023 (or 563018 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 28150550 is about 5305.7091891659. The cubic root of 28150550 is about 304.2021609504.

The spelling of 28150550 in words is "twenty-eight million, one hundred fifty thousand, five hundred fifty".