53705273 has 4 divisors (see below), whose sum is σ = 53720448. Its totient is φ = 53690100.

The previous prime is 53705251. The next prime is 53705279. The reversal of 53705273 is 37250735.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53705273 - 2⁶ = 53705209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53705279) 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, 848 + ... + 10398.

It is an arithmetic number, because the mean of its divisors is an integer number (13430112).

Almost surely, 2^53705273 is an apocalyptic number.

It is an amenable number.

53705273 is a deficient number, since it is larger than the sum of its proper divisors (15175).

53705273 is an equidigital number, since it uses as much as digits as its factorization.

53705273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15174.

The product of its (nonzero) digits is 22050, while the sum is 32.

The square root of 53705273 is about 7328.3881583879. The cubic root of 53705273 is about 377.2874068689.

The spelling of 53705273 in words is "fifty-three million, seven hundred five thousand, two hundred seventy-three".