52647043613 has 4 divisors (see below), whose sum is σ = 54462458940. Its totient is φ = 50831628288.

The previous prime is 52647043609. The next prime is 52647043621. The reversal of 52647043613 is 31634074625.

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 24302627449 + 28344416164 = 155893^2 + 168358^2 .

It is a cyclic number.

It is not a de Polignac number, because 52647043613 - 2² = 52647043609 is a prime.

It is a super-3 number, since 3×52647043613³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52647043663) 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, 907707620 + ... + 907707677.

It is an arithmetic number, because the mean of its divisors is an integer number (13615614735).

Almost surely, 2^52647043613 is an apocalyptic number.

It is an amenable number.

52647043613 is a deficient number, since it is larger than the sum of its proper divisors (1815415327).

52647043613 is a wasteful number, since it uses less digits than its factorization.

52647043613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815415326.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 52647043613 in words is "fifty-two billion, six hundred forty-seven million, forty-three thousand, six hundred thirteen".