538617503525 has 12 divisors (see below), whose sum is σ = 685936670532. Its totient is φ = 419248218240.

The previous prime is 538617503507. The next prime is 538617503551. The reversal of 538617503525 is 525305716835.

It can be written as a sum of positive squares in 6 ways, for example, as 121308196 + 538496195329 = 11014^2 + 733823^2 .

It is not a de Polignac number, because 538617503525 - 2¹⁶ = 538617437989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291143672 + ... + 291145521.

It is an arithmetic number, because the mean of its divisors is an integer number (57161389211).

Almost surely, 2^538617503525 is an apocalyptic number.

It is an amenable number.

538617503525 is a deficient number, since it is larger than the sum of its proper divisors (147319167007).

538617503525 is a wasteful number, since it uses less digits than its factorization.

538617503525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582289240 (or 582289235 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 50.

The spelling of 538617503525 in words is "five hundred thirty-eight billion, six hundred seventeen million, five hundred three thousand, five hundred twenty-five".