53243705 has 4 divisors (see below), whose sum is σ = 63892452. Its totient is φ = 42594960.

The previous prime is 53243669. The next prime is 53243713. The reversal of 53243705 is 50734235.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50734235 = 5 ⋅10146847.

It can be written as a sum of positive squares in 2 ways, for example, as 37908649 + 15335056 = 6157^2 + 3916^2 .

It is not a de Polignac number, because 53243705 - 2¹² = 53239609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5324366 + ... + 5324375.

It is an arithmetic number, because the mean of its divisors is an integer number (15973113).

Almost surely, 2^53243705 is an apocalyptic number.

It is an amenable number.

53243705 is a deficient number, since it is larger than the sum of its proper divisors (10648747).

53243705 is a wasteful number, since it uses less digits than its factorization.

53243705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648746.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 53243705 is about 7296.8284206222. The cubic root of 53243705 is about 376.2034345966.

The spelling of 53243705 in words is "fifty-three million, two hundred forty-three thousand, seven hundred five".