28585056 has 48 divisors (see below), whose sum is σ = 75527424. Its totient is φ = 9465984.

The previous prime is 28585049. The next prime is 28585057. The reversal of 28585056 is 65058582.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28585057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15141 + ... + 16923.

It is an arithmetic number, because the mean of its divisors is an integer number (1573488).

Almost surely, 2^28585056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28585056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37763712).

28585056 is an abundant number, since it is smaller than the sum of its proper divisors (46942368).

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

28585056 is a wasteful number, since it uses less digits than its factorization.

28585056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1955 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 28585056 is about 5346.4994155054. The cubic root of 28585056 is about 305.7593049341.

The spelling of 28585056 in words is "twenty-eight million, five hundred eighty-five thousand, fifty-six".