54021656505265 has 8 divisors (see below), whose sum is σ = 66917148703488. Its totient is φ = 41823217939440.

The previous prime is 54021656505247. The next prime is 54021656505301. The reversal of 54021656505265 is 56250565612045.

54021656505265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 54021656505265 - 2⁷ = 54021656505137 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 174263407927 + ... + 174263408236.

It is an arithmetic number, because the mean of its divisors is an integer number (8364643587936).

Almost surely, 2^{54021656505265} is an apocalyptic number.

It is an amenable number.

54021656505265 is a deficient number, since it is larger than the sum of its proper divisors (12895492198223).

54021656505265 is a wasteful number, since it uses less digits than its factorization.

54021656505265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348526816199.

The product of its (nonzero) digits is 10800000, while the sum is 52.

The spelling of 54021656505265 in words is "fifty-four trillion, twenty-one billion, six hundred fifty-six million, five hundred five thousand, two hundred sixty-five".