52105021420 has 48 divisors (see below), whose sum is σ = 115876051200. Its totient is φ = 19612790784.

The previous prime is 52105021379. The next prime is 52105021427. The reversal of 52105021420 is 2412050125.

52105021420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52105021391 and 52105021400.

It is not an unprimeable number, because it can be changed into a prime (52105021427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3528292 + ... + 3543028.

It is an arithmetic number, because the mean of its divisors is an integer number (2414084400).

Almost surely, 2^52105021420 is an apocalyptic number.

It is an amenable number.

52105021420 is an abundant number, since it is smaller than the sum of its proper divisors (63771029780).

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

52105021420 is a wasteful number, since it uses less digits than its factorization.

52105021420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25162 (or 25160 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 52105021420 its reverse (2412050125), we get a palindrome (54517071545).

The spelling of 52105021420 in words is "fifty-two billion, one hundred five million, twenty-one thousand, four hundred twenty".