125555533525 has 24 divisors (see below), whose sum is σ = 164150738720. Its totient is φ = 95002424640.

The previous prime is 125555533513. The next prime is 125555533541. The reversal of 125555533525 is 525335555521.

It is not a de Polignac number, because 125555533525 - 2²¹ = 125553436373 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, 75574 + ... + 506776.

Almost surely, 2^125555533525 is an apocalyptic number.

It is an amenable number.

125555533525 is a deficient number, since it is larger than the sum of its proper divisors (38595205195).

125555533525 is a wasteful number, since it uses less digits than its factorization.

125555533525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431845 (or 431840 counting only the distinct ones).

The product of its digits is 2812500, while the sum is 46.

The spelling of 125555533525 in words is "one hundred twenty-five billion, five hundred fifty-five million, five hundred thirty-three thousand, five hundred twenty-five".