551404405200000 has 576 divisors, whose sum is σ = 2012277082273920. Its totient is φ = 133673760000000.

The previous prime is 551404405199903. The next prime is 551404405200007. The reversal of 551404405200000 is 2504404155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (551404405200007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 143301225 + ... + 147098775.

It is an arithmetic number, because the mean of its divisors is an integer number (3493536601170).

Almost surely, 2^{551404405200000} is an apocalyptic number.

551404405200000 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 551404405200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006138541136960).

551404405200000 is an abundant number, since it is smaller than the sum of its proper divisors (1460872677073920).

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

551404405200000 is an equidigital number, since it uses as much as digits as its factorization.

551404405200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797615 (or 3797572 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 551404405200000 its reverse (2504404155), we get a palindrome (551406909604155).

The spelling of 551404405200000 in words is "five hundred fifty-one trillion, four hundred four billion, four hundred five million, two hundred thousand".