52672681 has 4 divisors (see below), whose sum is σ = 55771092. Its totient is φ = 49574272.

The previous prime is 52672657. The next prime is 52672687. The reversal of 52672681 is 18627625.

It is a happy number.

52672681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 32959081 + 19713600 = 5741^2 + 4440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52672681 is a prime.

It is a super-2 number, since 2×52672681² = 5548822647455522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52672681.

It is not an unprimeable number, because it can be changed into a prime (52672687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549180 + ... + 1549213.

It is an arithmetic number, because the mean of its divisors is an integer number (13942773).

Almost surely, 2^52672681 is an apocalyptic number.

It is an amenable number.

52672681 is a deficient number, since it is larger than the sum of its proper divisors (3098411).

52672681 is a wasteful number, since it uses less digits than its factorization.

52672681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098410.

The product of its digits is 40320, while the sum is 37.

The square root of 52672681 is about 7257.5947117485. The cubic root of 52672681 is about 374.8537053054.

The spelling of 52672681 in words is "fifty-two million, six hundred seventy-two thousand, six hundred eighty-one".