52782505 has 8 divisors (see below), whose sum is σ = 63765000. Its totient is φ = 41942016.

The previous prime is 52782481. The next prime is 52782511. The reversal of 52782505 is 50528725.

52782505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4048144 + 48734361 = 2012^2 + 6981^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52782505 - 2⁷ = 52782377 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34680 + ... + 36169.

It is an arithmetic number, because the mean of its divisors is an integer number (7970625).

Almost surely, 2^52782505 is an apocalyptic number.

It is an amenable number.

52782505 is a deficient number, since it is larger than the sum of its proper divisors (10982495).

52782505 is a wasteful number, since it uses less digits than its factorization.

52782505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71003.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 52782505 is about 7265.1569150294. The cubic root of 52782505 is about 375.1140512353.

The spelling of 52782505 in words is "fifty-two million, seven hundred eighty-two thousand, five hundred five".