28525952 has 128 divisors (see below), whose sum is σ = 73113600. Its totient is φ = 10782720.

The previous prime is 28525951. The next prime is 28525967. The reversal of 28525952 is 25952582.

It is a tau number, because it is divible by the number of its divisors (128).

Its product of digits (72000) is a multiple of the sum of its prime factors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28525951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361049 + ... + 361127.

It is an arithmetic number, because the mean of its divisors is an integer number (571200).

Almost surely, 2^28525952 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 28525952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36556800).

28525952 is an abundant number, since it is smaller than the sum of its proper divisors (44587648).

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

28525952 is a wasteful number, since it uses less digits than its factorization.

28525952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 132 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The square root of 28525952 is about 5340.9692004354. The cubic root of 28525952 is about 305.5484247274.

The spelling of 28525952 in words is "twenty-eight million, five hundred twenty-five thousand, nine hundred fifty-two".