54673639 has 4 divisors (see below), whose sum is σ = 54737856. Its totient is φ = 54609424.

The previous prime is 54673603. The next prime is 54673673. The reversal of 54673639 is 93637645.

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 54673639 - 2¹⁵ = 54640871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54673595 and 54673604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54674639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30814 + ... + 32539.

It is an arithmetic number, because the mean of its divisors is an integer number (13684464).

Almost surely, 2^54673639 is an apocalyptic number.

54673639 is a deficient number, since it is larger than the sum of its proper divisors (64217).

54673639 is an equidigital number, since it uses as much as digits as its factorization.

54673639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64216.

The product of its digits is 408240, while the sum is 43.

The square root of 54673639 is about 7394.1624948333. The cubic root of 54673639 is about 379.5415500816.

The spelling of 54673639 in words is "fifty-four million, six hundred seventy-three thousand, six hundred thirty-nine".