125266117525 has 6 divisors (see below), whose sum is σ = 155329985762. Its totient is φ = 100212894000.

The previous prime is 125266117453. The next prime is 125266117541. The reversal of 125266117525 is 525711662521.

It can be written as a sum of positive squares in 3 ways, for example, as 7821456721 + 117444660804 = 88439^2 + 342702^2 .

It is not a de Polignac number, because 125266117525 - 2¹¹ = 125266115477 is a prime.

It is a super-2 number, since 2×125266117525² (a number of 23 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 2505322326 + ... + 2505322375.

Almost surely, 2^125266117525 is an apocalyptic number.

It is an amenable number.

125266117525 is a deficient number, since it is larger than the sum of its proper divisors (30063868237).

125266117525 is an equidigital number, since it uses as much as digits as its factorization.

125266117525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010644711 (or 5010644706 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The spelling of 125266117525 in words is "one hundred twenty-five billion, two hundred sixty-six million, one hundred seventeen thousand, five hundred twenty-five".