52532681 has 4 divisors (see below), whose sum is σ = 52560912. Its totient is φ = 52504452.

The previous prime is 52532657. The next prime is 52532707. The reversal of 52532681 is 18623525.

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.

It is a cyclic number.

It is not a de Polignac number, because 52532681 - 2¹⁰ = 52531657 is a prime.

It is a super-2 number, since 2×52532681² = 5519365146095522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52532281) 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, 11111 + ... + 15116.

It is an arithmetic number, because the mean of its divisors is an integer number (13140228).

Almost surely, 2^52532681 is an apocalyptic number.

It is an amenable number.

52532681 is a deficient number, since it is larger than the sum of its proper divisors (28231).

52532681 is a wasteful number, since it uses less digits than its factorization.

52532681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28230.

The product of its digits is 14400, while the sum is 32.

The square root of 52532681 is about 7247.9432254951. The cubic root of 52532681 is about 374.5212997013.

The spelling of 52532681 in words is "fifty-two million, five hundred thirty-two thousand, six hundred eighty-one".