53785339 has 4 divisors (see below), whose sum is σ = 56123856. Its totient is φ = 51446824.

The previous prime is 53785337. The next prime is 53785351. The reversal of 53785339 is 93358735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93358735 = 5 ⋅18671747.

It is a cyclic number.

It is not a de Polignac number, because 53785339 - 2¹ = 53785337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53785295 and 53785304.

It is not an unprimeable number, because it can be changed into a prime (53785337) 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, 1169224 + ... + 1169269.

It is an arithmetic number, because the mean of its divisors is an integer number (14030964).

Almost surely, 2^53785339 is an apocalyptic number.

53785339 is a deficient number, since it is larger than the sum of its proper divisors (2338517).

53785339 is a wasteful number, since it uses less digits than its factorization.

53785339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338516.

The product of its digits is 340200, while the sum is 43.

The square root of 53785339 is about 7333.8488530921. The cubic root of 53785339 is about 377.4748055639.

The spelling of 53785339 in words is "fifty-three million, seven hundred eighty-five thousand, three hundred thirty-nine".