5210520165 has 48 divisors (see below), whose sum is σ = 9434775168. Its totient is φ = 2655151488.

The previous prime is 5210520149. The next prime is 5210520169. The reversal of 5210520165 is 5610250125.

It is not a de Polignac number, because 5210520165 - 2⁴ = 5210520149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5210520169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1153842 + ... + 1158348.

It is an arithmetic number, because the mean of its divisors is an integer number (196557816).

Almost surely, 2^5210520165 is an apocalyptic number.

It is an amenable number.

5210520165 is a deficient number, since it is larger than the sum of its proper divisors (4224255003).

5210520165 is a wasteful number, since it uses less digits than its factorization.

5210520165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658 (or 5655 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5210520165 is about 72183.9328729046. The cubic root of 5210520165 is about 1733.6457542331.

The spelling of 5210520165 in words is "five billion, two hundred ten million, five hundred twenty thousand, one hundred sixty-five".