54256345016121 has 12 divisors (see below), whose sum is σ = 78373046063572. Its totient is φ = 36169618248576.

The previous prime is 54256345016119. The next prime is 54256345016131. The reversal of 54256345016121 is 12161054365245.

54256345016121 is a `hidden beast` number, since 5 + 4 + 2 + 5 + 63 + 4 + 501 + 61 + 21 = 666.

54256345016121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26277270290496 + 27979074725625 = 5126136^2 + 5289525^2 .

It is not a de Polignac number, because 54256345016121 - 2¹ = 54256345016119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54256345016131) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 106266916 + ... + 106776261.

Almost surely, 2^{54256345016121} is an apocalyptic number.

It is an amenable number.

54256345016121 is a deficient number, since it is larger than the sum of its proper divisors (24116701047451).

54256345016121 is a wasteful number, since it uses less digits than its factorization.

54256345016121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213071480 (or 213071477 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 54256345016121 in words is "fifty-four trillion, two hundred fifty-six billion, three hundred forty-five million, sixteen thousand, one hundred twenty-one".