28648552 has 16 divisors (see below), whose sum is σ = 53785440. Its totient is φ = 14305776.

The previous prime is 28648531. The next prime is 28648573. The reversal of 28648552 is 25584682.

It is an interprime number because it is at equal distance from previous prime (28648531) and next prime (28648573).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6043 + ... + 9685.

It is an arithmetic number, because the mean of its divisors is an integer number (3361590).

Almost surely, 2^28648552 is an apocalyptic number.

It is an amenable number.

28648552 is a deficient number, since it is larger than the sum of its proper divisors (25136888).

28648552 is a wasteful number, since it uses less digits than its factorization.

28648552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632 (or 4628 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 28648552 is about 5352.4342125803. The cubic root of 28648552 is about 305.9855319458.

The spelling of 28648552 in words is "twenty-eight million, six hundred forty-eight thousand, five hundred fifty-two".