4065552 has 50 divisors (see below), whose sum is σ = 11770638. Its totient is φ = 1354752.

The previous prime is 4065541. The next prime is 4065569. The reversal of 4065552 is 2555604.

4065552 is a `hidden beast` number, since 4 + 0 + 655 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4064256 + 1296 = 2016^2 + 36^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 273 + ... + 2864.

Almost surely, 2^4065552 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 4065552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5885319).

4065552 is an abundant number, since it is smaller than the sum of its proper divisors (7705086).

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

4065552 is a wasteful number, since it uses less digits than its factorization.

4065552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157 (or 3142 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 4065552 is about 2016.3214029514. The cubic root of 4065552 is about 159.6025552194.

The spelling of 4065552 in words is "four million, sixty-five thousand, five hundred fifty-two".