54509739 has 4 divisors (see below), whose sum is σ = 72679656. Its totient is φ = 36339824.

The previous prime is 54509729. The next prime is 54509771. The reversal of 54509739 is 93790545.

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 54509739 - 2⁴ = 54509723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54509739.

It is not an unprimeable number, because it can be changed into a prime (54509729) 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, 9084954 + ... + 9084959.

It is an arithmetic number, because the mean of its divisors is an integer number (18169914).

Almost surely, 2^54509739 is an apocalyptic number.

54509739 is a deficient number, since it is larger than the sum of its proper divisors (18169917).

54509739 is a wasteful number, since it uses less digits than its factorization.

54509739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18169916.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 54509739 is about 7383.0711089627. The cubic root of 54509739 is about 379.1619087167.

The spelling of 54509739 in words is "fifty-four million, five hundred nine thousand, seven hundred thirty-nine".