54716509 has 4 divisors (see below), whose sum is σ = 56051100. Its totient is φ = 53381920.

The previous prime is 54716503. The next prime is 54716513. The reversal of 54716509 is 90561745.

54716509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90561745 = 5 ⋅18112349.

It can be written as a sum of positive squares in 2 ways, for example, as 2732409 + 51984100 = 1653^2 + 7210^2 .

It is a cyclic number.

It is not a de Polignac number, because 54716509 - 2⁵ = 54716477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54716503) 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 3 ways as a sum of consecutive naturals, for example, 667234 + ... + 667315.

It is an arithmetic number, because the mean of its divisors is an integer number (14012775).

Almost surely, 2^54716509 is an apocalyptic number.

It is an amenable number.

54716509 is a deficient number, since it is larger than the sum of its proper divisors (1334591).

54716509 is a wasteful number, since it uses less digits than its factorization.

54716509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334590.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 54716509 is about 7397.0608352237. The cubic root of 54716509 is about 379.6407245996.

It can be divided in two parts, 54716 and 509, that added together give a square (55225 = 235²).

The spelling of 54716509 in words is "fifty-four million, seven hundred sixteen thousand, five hundred nine".