142550520450 has 192 divisors, whose sum is σ = 386207281152. Its totient is φ = 34585632000.

The previous prime is 142550520443. The next prime is 142550520451. The reversal of 142550520450 is 54025055241.

It is not an unprimeable number, because it can be changed into a prime (142550520451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98242225 + ... + 98243675.

It is an arithmetic number, because the mean of its divisors is an integer number (2011496256).

Almost surely, 2^142550520450 is an apocalyptic number.

142550520450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142550520450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193103640576).

142550520450 is an abundant number, since it is smaller than the sum of its proper divisors (243656760702).

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

142550520450 is a wasteful number, since it uses less digits than its factorization.

142550520450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2164 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 142550520450 its reverse (54025055241), we get a palindrome (196575575691).

The spelling of 142550520450 in words is "one hundred forty-two billion, five hundred fifty million, five hundred twenty thousand, four hundred fifty".