52681533 has 8 divisors (see below), whose sum is σ = 70544448. Its totient is φ = 34969824.

The previous prime is 52681481. The next prime is 52681537. The reversal of 52681533 is 33518625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-52681533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52681494 and 52681503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52681537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36985 + ... + 38382.

It is an arithmetic number, because the mean of its divisors is an integer number (8818056).

Almost surely, 2^52681533 is an apocalyptic number.

It is an amenable number.

52681533 is a deficient number, since it is larger than the sum of its proper divisors (17862915).

52681533 is a wasteful number, since it uses less digits than its factorization.

52681533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75603.

The product of its digits is 21600, while the sum is 33.

The square root of 52681533 is about 7258.2045300474. The cubic root of 52681533 is about 374.8747030287.

The spelling of 52681533 in words is "fifty-two million, six hundred eighty-one thousand, five hundred thirty-three".