52111420000 has 120 divisors (see below), whose sum is σ = 128478873600. Its totient is φ = 20799552000.

The previous prime is 52111419961. The next prime is 52111420007. The reversal of 52111420000 is 2411125.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52111420007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10177441 + ... + 10182559.

It is an arithmetic number, because the mean of its divisors is an integer number (1070657280).

Almost surely, 2^52111420000 is an apocalyptic number.

52111420000 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 52111420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64239436800).

52111420000 is an abundant number, since it is smaller than the sum of its proper divisors (76367453600).

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

52111420000 is an equidigital number, since it uses as much as digits as its factorization.

52111420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658 (or 5635 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 52111420000 its reverse (2411125), we get a palindrome (52113831125).

The spelling of 52111420000 in words is "fifty-two billion, one hundred eleven million, four hundred twenty thousand".