5444455551 has 4 divisors (see below), whose sum is σ = 7259274072. Its totient is φ = 3629637032.

The previous prime is 5444455531. The next prime is 5444455553. The reversal of 5444455551 is 1555544445.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5444455551 - 2⁵ = 5444455519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5444455553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907409256 + ... + 907409261.

It is an arithmetic number, because the mean of its divisors is an integer number (1814818518).

Almost surely, 2^5444455551 is an apocalyptic number.

5444455551 is a deficient number, since it is larger than the sum of its proper divisors (1814818521).

5444455551 is a wasteful number, since it uses less digits than its factorization.

5444455551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814818520.

The product of its digits is 800000, while the sum is 42.

The square root of 5444455551 is about 73786.5539986792. The cubic root of 5444455551 is about 1759.2118922185.

Adding to 5444455551 its reverse (1555544445), we get a palindrome (6999999996).

The spelling of 5444455551 in words is "five billion, four hundred forty-four million, four hundred fifty-five thousand, five hundred fifty-one".