55522131400000 has 168 divisors, whose sum is σ = 137791260794880. Its totient is φ = 22196086080000.

The previous prime is 55522131399997. The next prime is 55522131400003. The reversal of 55522131400000 is 413122555.

It is an interprime number because it is at equal distance from previous prime (55522131399997) and next prime (55522131400003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55522131400003) 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, 351721089 + ... + 351878911.

It is an arithmetic number, because the mean of its divisors is an integer number (820186076160).

Almost surely, 2^{55522131400000} is an apocalyptic number.

55522131400000 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 55522131400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68895630397440).

55522131400000 is an abundant number, since it is smaller than the sum of its proper divisors (82269129394880).

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

55522131400000 is an equidigital number, since it uses as much as digits as its factorization.

55522131400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159619 (or 159589 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 55522131400000 its reverse (413122555), we get a palindrome (55522544522555).

The spelling of 55522131400000 in words is "fifty-five trillion, five hundred twenty-two billion, one hundred thirty-one million, four hundred thousand".