511011100050 has 96 divisors (see below), whose sum is σ = 1385001872064. Its totient is φ = 123658848000.

The previous prime is 511011100031. The next prime is 511011100079. The reversal of 511011100050 is 50001110115.

It is a super-2 number, since 2×511011100050² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 641040 + ... + 1197060.

It is an arithmetic number, because the mean of its divisors is an integer number (14427102834).

Almost surely, 2^511011100050 is an apocalyptic number.

511011100050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 511011100050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692500936032).

511011100050 is an abundant number, since it is smaller than the sum of its proper divisors (873990772014).

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

511011100050 is a wasteful number, since it uses less digits than its factorization.

511011100050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556604 (or 556599 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 511011100050 its reverse (50001110115), we get a palindrome (561012210165).

The spelling of 511011100050 in words is "five hundred eleven billion, eleven million, one hundred thousand, fifty".