52731253 has 4 divisors (see below), whose sum is σ = 54156460. Its totient is φ = 51306048.

The previous prime is 52731247. The next prime is 52731269. The reversal of 52731253 is 35213725.

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 30669444 + 22061809 = 5538^2 + 4697^2 .

It is a cyclic number.

It is not a de Polignac number, because 52731253 - 2²⁵ = 19176821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52731223) 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, 712548 + ... + 712621.

It is an arithmetic number, because the mean of its divisors is an integer number (13539115).

Almost surely, 2^52731253 is an apocalyptic number.

It is an amenable number.

52731253 is a deficient number, since it is larger than the sum of its proper divisors (1425207).

52731253 is a wasteful number, since it uses less digits than its factorization.

52731253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425206.

The product of its digits is 6300, while the sum is 28.

The square root of 52731253 is about 7261.6288117749. The cubic root of 52731253 is about 374.9925995577.

Adding to 52731253 its reverse (35213725), we get a palindrome (87944978).

It can be divided in two parts, 5273125 and 3, that added together give a triangular number (5273128 = T₃₂₄₇).

The spelling of 52731253 in words is "fifty-two million, seven hundred thirty-one thousand, two hundred fifty-three".