54856458155 has 16 divisors (see below), whose sum is σ = 67373137920. Its totient is φ = 42855347808.

The previous prime is 54856458121. The next prime is 54856458157. The reversal of 54856458155 is 55185465845.

It is a cyclic number.

It is not a de Polignac number, because 54856458155 - 2¹⁸ = 54856196011 is a prime.

It is a super-2 number, since 2×54856458155² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 54856458155.

It is not an unprimeable number, because it can be changed into a prime (54856458157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075664 + ... + 1125506.

It is an arithmetic number, because the mean of its divisors is an integer number (4210821120).

Almost surely, 2^54856458155 is an apocalyptic number.

54856458155 is a deficient number, since it is larger than the sum of its proper divisors (12516679765).

54856458155 is a wasteful number, since it uses less digits than its factorization.

54856458155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55010.

The product of its digits is 19200000, while the sum is 56.

The spelling of 54856458155 in words is "fifty-four billion, eight hundred fifty-six million, four hundred fifty-eight thousand, one hundred fifty-five".