42550544000 has 128 divisors (see below), whose sum is σ = 106983536400. Its totient is φ = 16828416000.

The previous prime is 42550543969. The next prime is 42550544017. The reversal of 42550544000 is 44505524.

It can be written as a sum of positive squares in 8 ways, for example, as 1853130304 + 40697413696 = 43048^2 + 201736^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409060 + ... + 1438940.

Almost surely, 2^42550544000 is an apocalyptic number.

42550544000 is a gapful number since it is divisible by the number (40) 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 42550544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53491768200).

42550544000 is an abundant number, since it is smaller than the sum of its proper divisors (64432992400).

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

42550544000 is an equidigital number, since it uses as much as digits as its factorization.

42550544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29999 (or 29977 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The spelling of 42550544000 in words is "forty-two billion, five hundred fifty million, five hundred forty-four thousand".