4551555 has 32 divisors (see below), whose sum is σ = 7660800. Its totient is φ = 2305152.

The previous prime is 4551523. The next prime is 4551559. The reversal of 4551555 is 5551554.

It is not a de Polignac number, because 4551555 - 2⁵ = 4551523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4551559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32676 + ... + 32814.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

Almost surely, 2^4551555 is an apocalyptic number.

4551555 is a deficient number, since it is larger than the sum of its proper divisors (3109245).

4551555 is a wasteful number, since it uses less digits than its factorization.

4551555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its digits is 12500, while the sum is 30.

The square root of 4551555 is about 2133.4373672550. The cubic root of 4551555 is about 165.7244545668.

Subtracting 4551555 from its reverse (5551554), we obtain a palindrome (999999).

The spelling of 4551555 in words is "four million, five hundred fifty-one thousand, five hundred fifty-five".