53644413552 has 20 divisors (see below), whose sum is σ = 138581401800. Its totient is φ = 17881471168.

The previous prime is 53644413551. The next prime is 53644413601. The reversal of 53644413552 is 25531444635.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644413551) by changing a digit.

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, 558795927 + ... + 558796022.

It is an arithmetic number, because the mean of its divisors is an integer number (6929070090).

Almost surely, 2^53644413552 is an apocalyptic number.

It is an amenable number.

53644413552 is an abundant number, since it is smaller than the sum of its proper divisors (84936988248).

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

53644413552 is a wasteful number, since it uses less digits than its factorization.

53644413552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117591960 (or 1117591954 counting only the distinct ones).

The product of its digits is 864000, while the sum is 42.

The spelling of 53644413552 in words is "fifty-three billion, six hundred forty-four million, four hundred thirteen thousand, five hundred fifty-two".