52782857605 has 4 divisors (see below), whose sum is σ = 63339429132. Its totient is φ = 42226286080.

The previous prime is 52782857593. The next prime is 52782857629. The reversal of 52782857605 is 50675828725.

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 32671647009 + 20111210596 = 180753^2 + 141814^2 .

It is not a de Polignac number, because 52782857605 - 2⁹ = 52782857093 is a prime.

It is a super-3 number, since 3×52782857605³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5278285756 + ... + 5278285765.

It is an arithmetic number, because the mean of its divisors is an integer number (15834857283).

Almost surely, 2^52782857605 is an apocalyptic number.

It is an amenable number.

52782857605 is a deficient number, since it is larger than the sum of its proper divisors (10556571527).

52782857605 is a wasteful number, since it uses less digits than its factorization.

52782857605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556571526.

The product of its (nonzero) digits is 9408000, while the sum is 55.

The spelling of 52782857605 in words is "fifty-two billion, seven hundred eighty-two million, eight hundred fifty-seven thousand, six hundred five".