551276100100 has 144 divisors (see below), whose sum is σ = 1325758896000. Its totient is φ = 197303040000.

The previous prime is 551276100091. The next prime is 551276100107. The reversal of 551276100100 is 1001672155.

It is not an unprimeable number, because it can be changed into a prime (551276100107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18089676 + ... + 18120124.

It is an arithmetic number, because the mean of its divisors is an integer number (9206659000).

Almost surely, 2^551276100100 is an apocalyptic number.

551276100100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551276100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662879448000).

551276100100 is an abundant number, since it is smaller than the sum of its proper divisors (774482795900).

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

551276100100 is a wasteful number, since it uses less digits than its factorization.

551276100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30734 (or 30727 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

Adding to 551276100100 its reverse (1001672155), we get a palindrome (552277772255).

The spelling of 551276100100 in words is "five hundred fifty-one billion, two hundred seventy-six million, one hundred thousand, one hundred".