54858656515 has 48 divisors (see below), whose sum is σ = 76226269536. Its totient is φ = 37749504000.

The previous prime is 54858656459. The next prime is 54858656551. The reversal of 54858656515 is 51565685845.

It is not a de Polignac number, because 54858656515 - 2¹¹ = 54858654467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54858656515.

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 47 ways as a sum of consecutive naturals, for example, 1431960 + ... + 1469770.

It is an arithmetic number, because the mean of its divisors is an integer number (1588047282).

Almost surely, 2^54858656515 is an apocalyptic number.

54858656515 is a deficient number, since it is larger than the sum of its proper divisors (21367613021).

54858656515 is a wasteful number, since it uses less digits than its factorization.

54858656515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37960 (or 37947 counting only the distinct ones).

The product of its digits is 28800000, while the sum is 58.

The spelling of 54858656515 in words is "fifty-four billion, eight hundred fifty-eight million, six hundred fifty-six thousand, five hundred fifteen".