5305444121 has 4 divisors (see below), whose sum is σ = 5488390500. Its totient is φ = 5122497744.

The previous prime is 5305444087. The next prime is 5305444127. The reversal of 5305444121 is 1214445035.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3909375625 + 1396068496 = 62525^2 + 37364^2 .

It is a cyclic number.

It is not a de Polignac number, because 5305444121 - 2⁶ = 5305444057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 182946349 = 5305444121 / (5 + 3 + 0 + 5 + 4 + 4 + 4 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5305444127) 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, 91473146 + ... + 91473203.

It is an arithmetic number, because the mean of its divisors is an integer number (1372097625).

Almost surely, 2^5305444121 is an apocalyptic number.

It is an amenable number.

5305444121 is a deficient number, since it is larger than the sum of its proper divisors (182946379).

5305444121 is a wasteful number, since it uses less digits than its factorization.

5305444121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182946378.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 5305444121 is about 72838.4796724918. The cubic root of 5305444121 is about 1744.1101716911.

Adding to 5305444121 its reverse (1214445035), we get a palindrome (6519889156).

The spelling of 5305444121 in words is "five billion, three hundred five million, four hundred forty-four thousand, one hundred twenty-one".