4455561 has 8 divisors (see below), whose sum is σ = 6480864. Its totient is φ = 2700320.

The previous prime is 4455559. The next prime is 4455569. The reversal of 4455561 is 1655544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4455561 - 2¹ = 4455559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4455569) 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, 67476 + ... + 67541.

It is an arithmetic number, because the mean of its divisors is an integer number (810108).

Almost surely, 2^4455561 is an apocalyptic number.

It is an amenable number.

4455561 is a deficient number, since it is larger than the sum of its proper divisors (2025303).

4455561 is a wasteful number, since it uses less digits than its factorization.

4455561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135031.

The product of its digits is 12000, while the sum is 30.

The square root of 4455561 is about 2110.8199828503. The cubic root of 4455561 is about 164.5511030765.

It can be divided in two parts, 445 and 5561, that added together give a palindrome (6006).

The spelling of 4455561 in words is "four million, four hundred fifty-five thousand, five hundred sixty-one".