54681385 has 16 divisors (see below), whose sum is σ = 74053440. Its totient is φ = 38395840.

The previous prime is 54681371. The next prime is 54681391. The reversal of 54681385 is 58318645.

54681385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54681385 - 2⁵ = 54681353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15547 + ... + 18736.

It is an arithmetic number, because the mean of its divisors is an integer number (4628340).

Almost surely, 2^54681385 is an apocalyptic number.

54681385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54681385 is a deficient number, since it is larger than the sum of its proper divisors (19372055).

54681385 is a wasteful number, since it uses less digits than its factorization.

54681385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34328.

The product of its digits is 115200, while the sum is 40.

The square root of 54681385 is about 7394.6862678548. The cubic root of 54681385 is about 379.5594733445.

The spelling of 54681385 in words is "fifty-four million, six hundred eighty-one thousand, three hundred eighty-five".