54981258505 has 16 divisors (see below), whose sum is σ = 67617897984. Its totient is φ = 42892405120.

The previous prime is 54981258487. The next prime is 54981258529. The reversal of 54981258505 is 50585218945.

It is not a de Polignac number, because 54981258505 - 2⁷ = 54981258377 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391674 + ... + 513196.

It is an arithmetic number, because the mean of its divisors is an integer number (4226118624).

Almost surely, 2^54981258505 is an apocalyptic number.

It is an amenable number.

54981258505 is a deficient number, since it is larger than the sum of its proper divisors (12636639479).

54981258505 is a wasteful number, since it uses less digits than its factorization.

54981258505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123776.

The product of its (nonzero) digits is 2880000, while the sum is 52.

The spelling of 54981258505 in words is "fifty-four billion, nine hundred eighty-one million, two hundred fifty-eight thousand, five hundred five".