53307843 has 4 divisors (see below), whose sum is σ = 71077128. Its totient is φ = 35538560.

The previous prime is 53307827. The next prime is 53307871. The reversal of 53307843 is 34870335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53307843 - 2⁴ = 53307827 is a prime.

It is a super-2 number, since 2×53307843² = 5683452250625298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53307803) 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, 8884638 + ... + 8884643.

It is an arithmetic number, because the mean of its divisors is an integer number (17769282).

Almost surely, 2^53307843 is an apocalyptic number.

53307843 is a deficient number, since it is larger than the sum of its proper divisors (17769285).

53307843 is a wasteful number, since it uses less digits than its factorization.

53307843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17769284.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 53307843 is about 7301.2220210044. Note that the first 3 decimals coincide. The cubic root of 53307843 is about 376.3544336909.

The spelling of 53307843 in words is "fifty-three million, three hundred seven thousand, eight hundred forty-three".