551243525211 has 12 divisors (see below), whose sum is σ = 796640192088. Its totient is φ = 367311278304.

The previous prime is 551243525207. The next prime is 551243525213. The reversal of 551243525211 is 112525342155.

551243525211 is a `hidden beast` number, since 5 + 5 + 1 + 2 + 435 + 2 + 5 + 211 = 666.

It is not a de Polignac number, because 551243525211 - 2² = 551243525207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551243525213) 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 11 ways as a sum of consecutive naturals, for example, 15348165 + ... + 15384038.

It is an arithmetic number, because the mean of its divisors is an integer number (66386682674).

Almost surely, 2^551243525211 is an apocalyptic number.

551243525211 is a deficient number, since it is larger than the sum of its proper divisors (245396666877).

551243525211 is a wasteful number, since it uses less digits than its factorization.

551243525211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30734202 (or 30734199 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

Adding to 551243525211 its reverse (112525342155), we get a palindrome (663768867366).

The spelling of 551243525211 in words is "five hundred fifty-one billion, two hundred forty-three million, five hundred twenty-five thousand, two hundred eleven".