52535281 has 4 divisors (see below), whose sum is σ = 52587172. Its totient is φ = 52483392.

The previous prime is 52535279. The next prime is 52535317. The reversal of 52535281 is 18253525.

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 27133681 + 25401600 = 5209^2 + 5040^2 .

It is a cyclic number.

It is not a de Polignac number, because 52535281 - 2¹ = 52535279 is a prime.

It is a super-2 number, since 2×52535281² = 5519911499497922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52535261) 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, 24396 + ... + 26461.

It is an arithmetic number, because the mean of its divisors is an integer number (13146793).

Almost surely, 2^52535281 is an apocalyptic number.

It is an amenable number.

52535281 is a deficient number, since it is larger than the sum of its proper divisors (51891).

52535281 is a wasteful number, since it uses less digits than its factorization.

52535281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51890.

The product of its digits is 12000, while the sum is 31.

The square root of 52535281 is about 7248.1225845042. The cubic root of 52535281 is about 374.5274783269.

The spelling of 52535281 in words is "fifty-two million, five hundred thirty-five thousand, two hundred eighty-one".