5255651165 has 4 divisors (see below), whose sum is σ = 6306781404. Its totient is φ = 4204520928.

The previous prime is 5255651153. The next prime is 5255651171. The reversal of 5255651165 is 5611565525.

It is a happy number.

5255651165 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1313192644 + 3942458521 = 36238^2 + 62789^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255651165 - 2¹² = 5255647069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525565112 + ... + 525565121.

It is an arithmetic number, because the mean of its divisors is an integer number (1576695351).

Almost surely, 2^5255651165 is an apocalyptic number.

It is an amenable number.

5255651165 is a deficient number, since it is larger than the sum of its proper divisors (1051130239).

5255651165 is a wasteful number, since it uses less digits than its factorization.

5255651165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051130238.

The product of its digits is 225000, while the sum is 41.

The square root of 5255651165 is about 72495.8699858137. The cubic root of 5255651165 is about 1738.6367051772.

The spelling of 5255651165 in words is "five billion, two hundred fifty-five million, six hundred fifty-one thousand, one hundred sixty-five".