52521525165 has 16 divisors (see below), whose sum is σ = 84055825728. Its totient is φ = 28004351616.

The previous prime is 52521525139. The next prime is 52521525223. The reversal of 52521525165 is 56152512525.

It is not a de Polignac number, because 52521525165 - 2¹⁰ = 52521524141 is a prime.

It is a Curzon number.

It is a congruent number.

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, 384352 + ... + 502761.

It is an arithmetic number, because the mean of its divisors is an integer number (5253489108).

Almost surely, 2^52521525165 is an apocalyptic number.

It is an amenable number.

52521525165 is a deficient number, since it is larger than the sum of its proper divisors (31534300563).

52521525165 is a wasteful number, since it uses less digits than its factorization.

52521525165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891068.

The product of its digits is 150000, while the sum is 39.

The spelling of 52521525165 in words is "fifty-two billion, five hundred twenty-one million, five hundred twenty-five thousand, one hundred sixty-five".