125251872535 has 48 divisors (see below), whose sum is σ = 159468110208. Its totient is φ = 94387083840.

The previous prime is 125251872533. The next prime is 125251872541. The reversal of 125251872535 is 535278152521.

It is a happy number.

It is not a de Polignac number, because 125251872535 - 2¹ = 125251872533 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 (125251872533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71694532 + ... + 71696278.

It is an arithmetic number, because the mean of its divisors is an integer number (3322252296).

Almost surely, 2^125251872535 is an apocalyptic number.

125251872535 is a deficient number, since it is larger than the sum of its proper divisors (34216237673).

125251872535 is a wasteful number, since it uses less digits than its factorization.

125251872535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204 (or 2173 counting only the distinct ones).

The product of its digits is 840000, while the sum is 46.

The spelling of 125251872535 in words is "one hundred twenty-five billion, two hundred fifty-one million, eight hundred seventy-two thousand, five hundred thirty-five".