551210404055500 has 72 divisors (see below), whose sum is σ = 1400389403736960. Its totient is φ = 188986424239200.

The previous prime is 551210404055471. The next prime is 551210404055501. The reversal of 551210404055500 is 5550404012155.

It is a self number, because there is not a number n which added to its sum of digits gives 551210404055500.

It is not an unprimeable number, because it can be changed into a prime (551210404055501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11249167420 + ... + 11249216419.

It is an arithmetic number, because the mean of its divisors is an integer number (19449852829680).

Almost surely, 2^{551210404055500} is an apocalyptic number.

551210404055500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551210404055500 is an abundant number, since it is smaller than the sum of its proper divisors (849178999681460).

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

551210404055500 is a wasteful number, since it uses less digits than its factorization.

551210404055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22498383872 (or 22498383853 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 37.

Adding to 551210404055500 its reverse (5550404012155), we get a palindrome (556760808067655).

The spelling of 551210404055500 in words is "five hundred fifty-one trillion, two hundred ten billion, four hundred four million, fifty-five thousand, five hundred".