52781713 has 4 divisors (see below), whose sum is σ = 52933300. Its totient is φ = 52630128.

The previous prime is 52781681. The next prime is 52781737. The reversal of 52781713 is 31718725.

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 30991489 + 21790224 = 5567^2 + 4668^2 .

It is a cyclic number.

It is not a de Polignac number, because 52781713 - 2⁵ = 52781681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52781783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75270 + ... + 75967.

It is an arithmetic number, because the mean of its divisors is an integer number (13233325).

Almost surely, 2^52781713 is an apocalyptic number.

It is an amenable number.

52781713 is a deficient number, since it is larger than the sum of its proper divisors (151587).

52781713 is a wasteful number, since it uses less digits than its factorization.

52781713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151586.

The product of its digits is 11760, while the sum is 34.

The square root of 52781713 is about 7265.1024080876. The cubic root of 52781713 is about 375.1121750339.

The spelling of 52781713 in words is "fifty-two million, seven hundred eighty-one thousand, seven hundred thirteen".