28416555 has 32 divisors (see below), whose sum is σ = 51892800. Its totient is φ = 14743296.

The previous prime is 28416527. The next prime is 28416613. The reversal of 28416555 is 55561482.

It is not a de Polignac number, because 28416555 - 2⁹ = 28416043 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 2151 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (1621650).

Almost surely, 2^28416555 is an apocalyptic number.

28416555 is a deficient number, since it is larger than the sum of its proper divisors (23476245).

28416555 is a wasteful number, since it uses less digits than its factorization.

28416555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740 (or 5734 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 28416555 is about 5330.7180566974. The cubic root of 28416555 is about 305.1573317096.

The spelling of 28416555 in words is "twenty-eight million, four hundred sixteen thousand, five hundred fifty-five".