52805525525525 has 6 divisors (see below), whose sum is σ = 65478851651682. Its totient is φ = 42244420420400.

The previous prime is 52805525525513. The next prime is 52805525525527. The reversal of 52805525525525 is 52552552550825.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6241797692881 + 46563727832644 = 2498359^2 + 6823762^2 .

It is not a de Polignac number, because 52805525525525 - 2²² = 52805521331221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52805525525527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1056110510486 + ... + 1056110510535.

It is an arithmetic number, because the mean of its divisors is an integer number (10913141941947).

Almost surely, 2^{52805525525525} is an apocalyptic number.

It is an amenable number.

52805525525525 is a deficient number, since it is larger than the sum of its proper divisors (12673326126157).

52805525525525 is a wasteful number, since it uses less digits than its factorization.

52805525525525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112221021031 (or 2112221021026 counting only the distinct ones).

The product of its (nonzero) digits is 50000000, while the sum is 56.

The spelling of 52805525525525 in words is "fifty-two trillion, eight hundred five billion, five hundred twenty-five million, five hundred twenty-five thousand, five hundred twenty-five".