52356665 has 8 divisors (see below), whose sum is σ = 64526280. Its totient is φ = 40753152.

The previous prime is 52356643. The next prime is 52356691. The reversal of 52356665 is 56665325.

It can be written as a sum of positive squares in 4 ways, for example, as 27962944 + 24393721 = 5288^2 + 4939^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52356665 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141320 + ... + 141689.

It is an arithmetic number, because the mean of its divisors is an integer number (8065785).

Almost surely, 2^52356665 is an apocalyptic number.

It is an amenable number.

52356665 is a deficient number, since it is larger than the sum of its proper divisors (12169615).

52356665 is a wasteful number, since it uses less digits than its factorization.

52356665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283051.

The product of its digits is 162000, while the sum is 38.

The square root of 52356665 is about 7235.7905580524. The cubic root of 52356665 is about 374.1025413018.

The spelling of 52356665 in words is "fifty-two million, three hundred fifty-six thousand, six hundred sixty-five".