125531135325 has 36 divisors (see below), whose sum is σ = 226017462528. Its totient is φ = 66599392800.

The previous prime is 125531135297. The next prime is 125531135357. The reversal of 125531135325 is 523531135521.

125531135325 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 3 + 113 + 532 + 5 = 666.

It is not a de Polignac number, because 125531135325 - 2¹⁰ = 125531134301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125531135325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1417539 + ... + 1503488.

It is an arithmetic number, because the mean of its divisors is an integer number (6278262848).

Almost surely, 2^125531135325 is an apocalyptic number.

125531135325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125531135325 is a deficient number, since it is larger than the sum of its proper divisors (100486327203).

125531135325 is a wasteful number, since it uses less digits than its factorization.

125531135325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921234 (or 2921226 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The spelling of 125531135325 in words is "one hundred twenty-five billion, five hundred thirty-one million, one hundred thirty-five thousand, three hundred twenty-five".