125545134525 has 96 divisors (see below), whose sum is σ = 215164561920. Its totient is φ = 64556974080.

The previous prime is 125545134497. The next prime is 125545134551. The reversal of 125545134525 is 525431545521.

It is a happy number.

It is not a de Polignac number, because 125545134525 - 2²⁹ = 125008263613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 74154579 + ... + 74156271.

It is an arithmetic number, because the mean of its divisors is an integer number (2241297520).

Almost surely, 2^125545134525 is an apocalyptic number.

125545134525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125545134525 is a deficient number, since it is larger than the sum of its proper divisors (89619427395).

125545134525 is a wasteful number, since it uses less digits than its factorization.

125545134525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2050 counting only the distinct ones).

The product of its digits is 600000, while the sum is 42.

The spelling of 125545134525 in words is "one hundred twenty-five billion, five hundred forty-five million, one hundred thirty-four thousand, five hundred twenty-five".