52681543 has 4 divisors (see below), whose sum is σ = 52949160. Its totient is φ = 52413928.

The previous prime is 52681537. The next prime is 52681549. The reversal of 52681543 is 34518625.

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

It is an interprime number because it is at equal distance from previous prime (52681537) and next prime (52681549).

It is a cyclic number.

It is not a de Polignac number, because 52681543 - 2¹³ = 52673351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52681499 and 52681508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52681549) 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, 133513 + ... + 133906.

It is an arithmetic number, because the mean of its divisors is an integer number (13237290).

Almost surely, 2^52681543 is an apocalyptic number.

52681543 is a deficient number, since it is larger than the sum of its proper divisors (267617).

52681543 is a wasteful number, since it uses less digits than its factorization.

52681543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267616.

The product of its digits is 28800, while the sum is 34.

The square root of 52681543 is about 7258.2052189229. The cubic root of 52681543 is about 374.8747267482.

The spelling of 52681543 in words is "fifty-two million, six hundred eighty-one thousand, five hundred forty-three".