54837309 has 4 divisors (see below), whose sum is σ = 73116416. Its totient is φ = 36558204.

The previous prime is 54837281. The next prime is 54837317. The reversal of 54837309 is 90373845.

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 a de Polignac number, because none of the positive numbers 2^k-54837309 is a prime.

It is a super-2 number, since 2×54837309² = 6014260916722962, which contains 22 as substring.

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 (54837379) 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, 9139549 + ... + 9139554.

It is an arithmetic number, because the mean of its divisors is an integer number (18279104).

Almost surely, 2^54837309 is an apocalyptic number.

It is an amenable number.

54837309 is a deficient number, since it is larger than the sum of its proper divisors (18279107).

54837309 is a wasteful number, since it uses less digits than its factorization.

54837309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18279106.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 54837309 is about 7405.2217387462. The cubic root of 54837309 is about 379.9199023238.

The spelling of 54837309 in words is "fifty-four million, eight hundred thirty-seven thousand, three hundred nine".