54781547903 has 4 divisors (see below), whose sum is σ = 55947112800. Its totient is φ = 53615983008.

The previous prime is 54781547861. The next prime is 54781547927. The reversal of 54781547903 is 30974518745.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54781547903 - 2¹⁰ = 54781546879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54781547963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582782378 + ... + 582782471.

It is an arithmetic number, because the mean of its divisors is an integer number (13986778200).

Almost surely, 2^54781547903 is an apocalyptic number.

54781547903 is a deficient number, since it is larger than the sum of its proper divisors (1165564897).

54781547903 is a wasteful number, since it uses less digits than its factorization.

54781547903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165564896.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 54781547903 in words is "fifty-four billion, seven hundred eighty-one million, five hundred forty-seven thousand, nine hundred three".