765550225 has 24 divisors (see below), whose sum is σ = 1045299168. Its totient is φ = 551539200.

The previous prime is 765550213. The next prime is 765550267. The reversal of 765550225 is 522055567.

It is a happy number.

765550225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 765550225 - 2¹³ = 765542033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16417 + ... + 42433.

It is an arithmetic number, because the mean of its divisors is an integer number (43554132).

Almost surely, 2^765550225 is an apocalyptic number.

It is an amenable number.

765550225 is a deficient number, since it is larger than the sum of its proper divisors (279748943).

765550225 is a wasteful number, since it uses less digits than its factorization.

765550225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26145 (or 26140 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 765550225 is about 27668.5782974117. The cubic root of 765550225 is about 914.7966442684.

The spelling of 765550225 in words is "seven hundred sixty-five million, five hundred fifty thousand, two hundred twenty-five".