53921675687044 has 27 divisors (see below), whose sum is σ = 103721550552151. Its totient is φ = 24509779153640.

The previous prime is 53921675687029. The next prime is 53921675687141. The reversal of 53921675687044 is 44078657612935.

The square root of 53921675687044 is 7343138.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 161382147 + ... + 161715925.

It is a 1-persistent number, because it is pandigital, but 2⋅53921675687044 = 107843351374088 is not.

Almost surely, 2^{53921675687044} is an apocalyptic number.

53921675687044 is the 7343138-th square number.

It is an amenable number.

53921675687044 is a deficient number, since it is larger than the sum of its proper divisors (49799874865107).

53921675687044 is an frugal number, since it uses more digits than its factorization.

53921675687044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667584 (or 333792 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 67.

The spelling of 53921675687044 in words is "fifty-three trillion, nine hundred twenty-one billion, six hundred seventy-five million, six hundred eighty-seven thousand, forty-four".