505050421422450 has 24 divisors (see below), whose sum is σ = 1252525045128048. Its totient is φ = 134680112379280.

The previous prime is 505050421422431. The next prime is 505050421422451. The reversal of 505050421422450 is 54224124050505.

It is a junction number, because it is equal to n+sod(n) for n = 505050421422399 and 505050421422408.

It is not an unprimeable number, because it can be changed into a prime (505050421422451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1683501404592 + ... + 1683501404891.

It is an arithmetic number, because the mean of its divisors is an integer number (52188543547002).

Almost surely, 2^{505050421422450} is an apocalyptic number.

505050421422450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505050421422450 is an abundant number, since it is smaller than the sum of its proper divisors (747474623705598).

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

505050421422450 is a wasteful number, since it uses less digits than its factorization.

505050421422450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367002809498 (or 3367002809493 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 39.

Adding to 505050421422450 its reverse (54224124050505), we get a palindrome (559274545472955).

The spelling of 505050421422450 in words is "five hundred five trillion, fifty billion, four hundred twenty-one million, four hundred twenty-two thousand, four hundred fifty".