28454552 has 64 divisors (see below), whose sum is σ = 65664000. Its totient is φ = 11287296.

The previous prime is 28454537. The next prime is 28454557. The reversal of 28454552 is 25545482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28454557) 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, 49724 + ... + 50292.

It is an arithmetic number, because the mean of its divisors is an integer number (1026000).

Almost surely, 2^28454552 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 28454552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32832000).

28454552 is an abundant number, since it is smaller than the sum of its proper divisors (37209448).

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

28454552 is a wasteful number, since it uses less digits than its factorization.

28454552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 644 counting only the distinct ones).

The product of its digits is 64000, while the sum is 35.

The square root of 28454552 is about 5334.2808325022. The cubic root of 28454552 is about 305.2932841369.

The spelling of 28454552 in words is "twenty-eight million, four hundred fifty-four thousand, five hundred fifty-two".