54643131240655 has 32 divisors (see below), whose sum is σ = 66339337437504. Its totient is φ = 43205792587776.

The previous prime is 54643131240629. The next prime is 54643131240703. The reversal of 54643131240655 is 55604213134645.

It is a happy number.

54643131240655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54643131240655 - 2¹¹ = 54643131238607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54643131240599 and 54643131240608.

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 31 ways as a sum of consecutive naturals, for example, 1684264864 + ... + 1684297306.

It is an arithmetic number, because the mean of its divisors is an integer number (2073104294922).

Almost surely, 2^{54643131240655} is an apocalyptic number.

54643131240655 is a deficient number, since it is larger than the sum of its proper divisors (11696206196849).

54643131240655 is a wasteful number, since it uses less digits than its factorization.

54643131240655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43915.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 54643131240655 in words is "fifty-four trillion, six hundred forty-three billion, one hundred thirty-one million, two hundred forty thousand, six hundred fifty-five".