52705253 has 4 divisors (see below), whose sum is σ = 55805580. Its totient is φ = 49604928.

The previous prime is 52705207. The next prime is 52705271. The reversal of 52705253 is 35250725.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33895684 + 18809569 = 5822^2 + 4337^2 .

It is a cyclic number.

It is not a de Polignac number, because 52705253 - 2¹⁸ = 52443109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52702253) 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, 1550138 + ... + 1550171.

It is an arithmetic number, because the mean of its divisors is an integer number (13951395).

Almost surely, 2^52705253 is an apocalyptic number.

It is an amenable number.

52705253 is a deficient number, since it is larger than the sum of its proper divisors (3100327).

52705253 is a wasteful number, since it uses less digits than its factorization.

52705253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100326.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 52705253 is about 7259.8383590821. The cubic root of 52705253 is about 374.9309573632.

Adding to 52705253 its reverse (35250725), we get a palindrome (87955978).

The spelling of 52705253 in words is "fifty-two million, seven hundred five thousand, two hundred fifty-three".