138050517525 has 24 divisors (see below), whose sum is σ = 228254230080. Its totient is φ = 73623488640.

The previous prime is 138050517511. The next prime is 138050517533. The reversal of 138050517525 is 525715050831.

It is not a de Polignac number, because 138050517525 - 2¹⁸ = 138050255381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2850664 + ... + 2898686.

It is an arithmetic number, because the mean of its divisors is an integer number (9510592920).

Almost surely, 2^138050517525 is an apocalyptic number.

138050517525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138050517525 is a deficient number, since it is larger than the sum of its proper divisors (90203712555).

138050517525 is a wasteful number, since it uses less digits than its factorization.

138050517525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86365 (or 86360 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 42.

The spelling of 138050517525 in words is "one hundred thirty-eight billion, fifty million, five hundred seventeen thousand, five hundred twenty-five".