54642783 has 16 divisors (see below), whose sum is σ = 78619520. Its totient is φ = 33558624.

The previous prime is 54642773. The next prime is 54642787. The reversal of 54642783 is 38724645.

It is a happy number.

54642783 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 54642783 - 2⁸ = 54642527 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54642787) by changing a digit.

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, 23988 + ... + 26166.

It is an arithmetic number, because the mean of its divisors is an integer number (4913720).

Almost surely, 2^54642783 is an apocalyptic number.

54642783 is a deficient number, since it is larger than the sum of its proper divisors (23976737).

54642783 is a wasteful number, since it uses less digits than its factorization.

54642783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838.

The product of its digits is 161280, while the sum is 39.

The square root of 54642783 is about 7392.0756895476. The cubic root of 54642783 is about 379.4701363979.

The spelling of 54642783 in words is "fifty-four million, six hundred forty-two thousand, seven hundred eighty-three".