505125300000 has 288 divisors, whose sum is σ = 1695922329024. Its totient is φ = 131564160000.

The previous prime is 505125299993. The next prime is 505125300007. The reversal of 505125300000 is 3521505.

It is an interprime number because it is at equal distance from previous prime (505125299993) and next prime (505125300007).

It is a self number, because there is not a number n which added to its sum of digits gives 505125300000.

It is not an unprimeable number, because it can be changed into a prime (505125300007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12880422 + ... + 12919578.

It is an arithmetic number, because the mean of its divisors is an integer number (5888619198).

Almost surely, 2^505125300000 is an apocalyptic number.

505125300000 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 505125300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847961164512).

505125300000 is an abundant number, since it is smaller than the sum of its proper divisors (1190797029024).

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

505125300000 is an equidigital number, since it uses as much as digits as its factorization.

505125300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39238 (or 39210 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

Adding to 505125300000 its reverse (3521505), we get a palindrome (505128821505).

The spelling of 505125300000 in words is "five hundred five billion, one hundred twenty-five million, three hundred thousand".