52505424212 has 24 divisors (see below), whose sum is σ = 92570856840. Its totient is φ = 26057243520.

The previous prime is 52505424173. The next prime is 52505424229. The reversal of 52505424212 is 21242450525.

It can be written as a sum of positive squares in 4 ways, for example, as 5223531076 + 47281893136 = 72274^2 + 217444^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252614 + ... + 410882.

It is an arithmetic number, because the mean of its divisors is an integer number (3857119035).

Almost surely, 2^52505424212 is an apocalyptic number.

It is an amenable number.

52505424212 is a deficient number, since it is larger than the sum of its proper divisors (40065432628).

52505424212 is a wasteful number, since it uses less digits than its factorization.

52505424212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158891 (or 158889 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 52505424212 its reverse (21242450525), we get a palindrome (73747874737).

The spelling of 52505424212 in words is "fifty-two billion, five hundred five million, four hundred twenty-four thousand, two hundred twelve".