52520026420 has 12 divisors (see below), whose sum is σ = 110292055524. Its totient is φ = 21008010560.

The previous prime is 52520026417. The next prime is 52520026459. The reversal of 52520026420 is 2462002525.

It can be written as a sum of positive squares in 2 ways, for example, as 25468329744 + 27051696676 = 159588^2 + 164474^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313000641 + ... + 1313000680.

It is an arithmetic number, because the mean of its divisors is an integer number (9191004627).

Almost surely, 2^52520026420 is an apocalyptic number.

It is an amenable number.

52520026420 is an abundant number, since it is smaller than the sum of its proper divisors (57772029104).

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

52520026420 is a wasteful number, since it uses less digits than its factorization.

52520026420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626001330 (or 2626001328 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 52520026420 its reverse (2462002525), we get a palindrome (54982028945).

The spelling of 52520026420 in words is "fifty-two billion, five hundred twenty million, twenty-six thousand, four hundred twenty".