53542443252 has 12 divisors (see below), whose sum is σ = 124932367616. Its totient is φ = 17847481080.

The previous prime is 53542443239. The next prime is 53542443277. The reversal of 53542443252 is 25234424535.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 53542443252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2230935124 + ... + 2230935147.

Almost surely, 2^53542443252 is an apocalyptic number.

It is an amenable number.

53542443252 is an abundant number, since it is smaller than the sum of its proper divisors (71389924364).

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

53542443252 is a wasteful number, since it uses less digits than its factorization.

53542443252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461870278 (or 4461870276 counting only the distinct ones).

The product of its digits is 576000, while the sum is 39.

Adding to 53542443252 its reverse (25234424535), we get a palindrome (78776867787).

The spelling of 53542443252 in words is "fifty-three billion, five hundred forty-two million, four hundred forty-three thousand, two hundred fifty-two".