5252656565 has 16 divisors (see below), whose sum is σ = 6839876736. Its totient is φ = 3849268800.

The previous prime is 5252656559. The next prime is 5252656663. The reversal of 5252656565 is 5656562525.

It is a de Polignac number, because none of the positive numbers 2^k-5252656565 is a prime.

It is a Duffinian number.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 299921 + ... + 316950.

It is an arithmetic number, because the mean of its divisors is an integer number (427492296).

Almost surely, 2^5252656565 is an apocalyptic number.

It is an amenable number.

5252656565 is a deficient number, since it is larger than the sum of its proper divisors (1587220171).

5252656565 is a wasteful number, since it uses less digits than its factorization.

5252656565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617020.

The product of its digits is 2700000, while the sum is 47.

The square root of 5252656565 is about 72475.2134526005. The cubic root of 5252656565 is about 1738.3064250974.

The spelling of 5252656565 in words is "five billion, two hundred fifty-two million, six hundred fifty-six thousand, five hundred sixty-five".