53847109 has 8 divisors (see below), whose sum is σ = 57094848. Its totient is φ = 50608320.

The previous prime is 53847107. The next prime is 53847133. The reversal of 53847109 is 90174835.

53847109 = T₅₉₉₀ + T₅₉₉₁ + T₅₉₉₂.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53847109 - 2¹ = 53847107 is a prime.

It is a super-2 number, since 2×53847109² = 5799022295315762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53847107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13294 + ... + 16864.

It is an arithmetic number, because the mean of its divisors is an integer number (7136856).

Almost surely, 2^53847109 is an apocalyptic number.

53847109 is the 5992-nd centered triangular number.

It is an amenable number.

53847109 is a deficient number, since it is larger than the sum of its proper divisors (3247739).

53847109 is a wasteful number, since it uses less digits than its factorization.

53847109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 53847109 is about 7338.0589395289. The cubic root of 53847109 is about 377.6192544592.

It can be divided in two parts, 53847 and 109, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 53847109 in words is "fifty-three million, eight hundred forty-seven thousand, one hundred nine".