54306309 has 4 divisors (see below), whose sum is σ = 72408416. Its totient is φ = 36204204.

The previous prime is 54306293. The next prime is 54306311. The reversal of 54306309 is 90360345.

It is a happy number.

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 not a de Polignac number, because 54306309 - 2⁴ = 54306293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54306349) 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, 9051049 + ... + 9051054.

It is an arithmetic number, because the mean of its divisors is an integer number (18102104).

Almost surely, 2^54306309 is an apocalyptic number.

It is an amenable number.

54306309 is a deficient number, since it is larger than the sum of its proper divisors (18102107).

54306309 is a wasteful number, since it uses less digits than its factorization.

54306309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18102106.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 54306309 is about 7369.2814439401. The cubic root of 54306309 is about 378.6896441201.

It can be divided in two parts, 54306 and 309, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 54306309 in words is "fifty-four million, three hundred six thousand, three hundred nine".