5216541121 has 4 divisors (see below), whose sum is σ = 5690772144. Its totient is φ = 4742310100.

The previous prime is 5216541101. The next prime is 5216541149. The reversal of 5216541121 is 1211456125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5216541121 - 2⁷ = 5216540993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5216541121.

It is not an unprimeable number, because it can be changed into a prime (5216541101) 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, 237115495 + ... + 237115516.

It is an arithmetic number, because the mean of its divisors is an integer number (1422693036).

Almost surely, 2^5216541121 is an apocalyptic number.

It is an amenable number.

5216541121 is a deficient number, since it is larger than the sum of its proper divisors (474231023).

5216541121 is a wasteful number, since it uses less digits than its factorization.

5216541121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474231022.

The product of its digits is 2400, while the sum is 28.

The square root of 5216541121 is about 72225.6264839565. The cubic root of 5216541121 is about 1734.3132619210.

Adding to 5216541121 its reverse (1211456125), we get a palindrome (6427997246).

The spelling of 5216541121 in words is "five billion, two hundred sixteen million, five hundred forty-one thousand, one hundred twenty-one".