2825507665 has 16 divisors (see below), whose sum is σ = 3428686800. Its totient is φ = 2235064320.

The previous prime is 2825507647. The next prime is 2825507681. The reversal of 2825507665 is 5667055282.

It can be written as a sum of positive squares in 8 ways, for example, as 118178641 + 2707329024 = 10871^2 + 52032^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2825507665 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749385 + ... + 753145.

It is an arithmetic number, because the mean of its divisors is an integer number (214292925).

Almost surely, 2^2825507665 is an apocalyptic number.

It is an amenable number.

2825507665 is a deficient number, since it is larger than the sum of its proper divisors (603179135).

2825507665 is a wasteful number, since it uses less digits than its factorization.

2825507665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The square root of 2825507665 is about 53155.5045597349. The cubic root of 2825507665 is about 1413.7268182403.

The spelling of 2825507665 in words is "two billion, eight hundred twenty-five million, five hundred seven thousand, six hundred sixty-five".