54781673 has 4 divisors (see below), whose sum is σ = 54799248. Its totient is φ = 54764100.

The previous prime is 54781669. The next prime is 54781687. The reversal of 54781673 is 37618745.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54781673 - 2² = 54781669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54781673.

It is not an unprimeable number, because it can be changed into a prime (54781873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2711 + ... + 10812.

It is an arithmetic number, because the mean of its divisors is an integer number (13699812).

Almost surely, 2^54781673 is an apocalyptic number.

It is an amenable number.

54781673 is a deficient number, since it is larger than the sum of its proper divisors (17575).

54781673 is a wasteful number, since it uses less digits than its factorization.

54781673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17574.

The product of its digits is 141120, while the sum is 41.

The square root of 54781673 is about 7401.4642470257. The cubic root of 54781673 is about 379.7913744021.

The spelling of 54781673 in words is "fifty-four million, seven hundred eighty-one thousand, six hundred seventy-three".