53644655542 has 8 divisors (see below), whose sum is σ = 81296540136. Its totient is φ = 26545808832.

The previous prime is 53644655539. The next prime is 53644655557. The reversal of 53644655542 is 24555644635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138259228 + ... + 138259615.

It is an arithmetic number, because the mean of its divisors is an integer number (10162067517).

Almost surely, 2^53644655542 is an apocalyptic number.

53644655542 is a deficient number, since it is larger than the sum of its proper divisors (27651884594).

53644655542 is a wasteful number, since it uses less digits than its factorization.

53644655542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276518942.

The product of its digits is 8640000, while the sum is 49.

The spelling of 53644655542 in words is "fifty-three billion, six hundred forty-four million, six hundred fifty-five thousand, five hundred forty-two".