511050020052 has 96 divisors (see below), whose sum is σ = 1403484009984. Its totient is φ = 142689456000.

The previous prime is 511050020051. The next prime is 511050020053. The reversal of 511050020052 is 250020050115.

It is an interprime number because it is at equal distance from previous prime (511050020051) and next prime (511050020053).

It is a super-2 number, since 2×511050020052² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511050020051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 666427 + ... + 1210877.

It is an arithmetic number, because the mean of its divisors is an integer number (14619625104).

Almost surely, 2^511050020052 is an apocalyptic number.

511050020052 is a gapful number since it is divisible by the number (52) 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 511050020052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701742004992).

511050020052 is an abundant number, since it is smaller than the sum of its proper divisors (892433989932).

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

511050020052 is a wasteful number, since it uses less digits than its factorization.

511050020052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545029 (or 545027 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

Adding to 511050020052 its reverse (250020050115), we get a palindrome (761070070167).

The spelling of 511050020052 in words is "five hundred eleven billion, fifty million, twenty thousand, fifty-two".