551211102552100 has 36 divisors (see below), whose sum is σ = 1196320490234884. Its totient is φ = 220448976007680.

The previous prime is 551211102552049. The next prime is 551211102552109. The reversal of 551211102552100 is 1255201112155.

It can be written as a sum of positive squares in 6 ways, for example, as 7752526960896 + 543458575591204 = 2784336^2 + 23312198^2 .

It is not an unprimeable number, because it can be changed into a prime (551211102552109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442687857 + ... + 443931256.

Almost surely, 2^{551211102552100} is an apocalyptic number.

551211102552100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551211102552100 is an abundant number, since it is smaller than the sum of its proper divisors (645109387682784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551211102552100 is a wasteful number, since it uses less digits than its factorization.

551211102552100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886625344 (or 886625337 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 31.

Adding to 551211102552100 its reverse (1255201112155), we get a palindrome (552466303664255).

The spelling of 551211102552100 in words is "five hundred fifty-one trillion, two hundred eleven billion, one hundred two million, five hundred fifty-two thousand, one hundred".