4458552561 has 12 divisors (see below), whose sum is σ = 6451457220. Its totient is φ = 2967141120.

The previous prime is 4458552541. The next prime is 4458552607. The reversal of 4458552561 is 1652558544.

4458552561 is a `hidden beast` number, since 4 + 4 + 5 + 85 + 5 + 2 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 249008400 + 4209544161 = 15780^2 + 64881^2 .

It is not a de Polignac number, because 4458552561 - 2¹³ = 4458544369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4458552541) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 430200 + ... + 440441.

It is an arithmetic number, because the mean of its divisors is an integer number (537621435).

Almost surely, 2^4458552561 is an apocalyptic number.

It is an amenable number.

4458552561 is a deficient number, since it is larger than the sum of its proper divisors (1992904659).

4458552561 is a wasteful number, since it uses less digits than its factorization.

4458552561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871216 (or 871213 counting only the distinct ones).

The product of its digits is 960000, while the sum is 45.

The square root of 4458552561 is about 66772.3937042847. The cubic root of 4458552561 is about 1645.8792257251.

The spelling of 4458552561 in words is "four billion, four hundred fifty-eight million, five hundred fifty-two thousand, five hundred sixty-one".