52187205065 has 8 divisors (see below), whose sum is σ = 62625896520. Its totient is φ = 41748930432.

The previous prime is 52187205061. The next prime is 52187205073. The reversal of 52187205065 is 56050278125.

It can be written as a sum of positive squares in 4 ways, for example, as 23972948224 + 28214256841 = 154832^2 + 167971^2 .

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 52187205065 - 2² = 52187205061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52187205061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 356087 + ... + 480803.

It is an arithmetic number, because the mean of its divisors is an integer number (7828237065).

Almost surely, 2^52187205065 is an apocalyptic number.

It is an amenable number.

52187205065 is a deficient number, since it is larger than the sum of its proper divisors (10438691455).

52187205065 is a wasteful number, since it uses less digits than its factorization.

52187205065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208411.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 52187205065 in words is "fifty-two billion, one hundred eighty-seven million, two hundred five thousand, sixty-five".