505051100000 has 72 divisors (see below), whose sum is σ = 1242819891936. Its totient is φ = 202020400000.

The previous prime is 505051099981. The next prime is 505051100011. The reversal of 505051100000 is 1150505.

It is a super-2 number, since 2×505051100000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2425256 + ... + 2625255.

It is an arithmetic number, because the mean of its divisors is an integer number (17261387388).

Almost surely, 2^505051100000 is an apocalyptic number.

505051100000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505051100000 is an abundant number, since it is smaller than the sum of its proper divisors (737768791936).

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

505051100000 is an frugal number, since it uses more digits than its factorization.

505051100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050546 (or 5050518 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 17.

Adding to 505051100000 its reverse (1150505), we get a palindrome (505052250505).

The spelling of 505051100000 in words is "five hundred five billion, fifty-one million, one hundred thousand".