4555551 has 64 divisors (see below), whose sum is σ = 8580096. Its totient is φ = 2073600.

The previous prime is 4555547. The next prime is 4555559. The reversal of 4555551 is 1555554.

It is not a de Polignac number, because 4555551 - 2² = 4555547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4555559) 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 63 ways as a sum of consecutive naturals, for example, 111091 + ... + 111131.

It is an arithmetic number, because the mean of its divisors is an integer number (134064).

Almost surely, 2^4555551 is an apocalyptic number.

4555551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4555551 is a deficient number, since it is larger than the sum of its proper divisors (4024545).

4555551 is a wasteful number, since it uses less digits than its factorization.

4555551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112.

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

The square root of 4555551 is about 2134.3736786233. The cubic root of 4555551 is about 165.7729391846.

It can be divided in two parts, 455 and 5551, that added together give a palindrome (6006).

The spelling of 4555551 in words is "four million, five hundred fifty-five thousand, five hundred fifty-one".