125806725 has 54 divisors (see below), whose sum is σ = 247734578. Its totient is φ = 60984000.

The previous prime is 125806693. The next prime is 125806739. The reversal of 125806725 is 527608521.

It is a happy number.

125806725 is a `hidden beast` number, since 1 + 2 + 580 + 6 + 72 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 4322241 + 121484484 = 2079^2 + 11022^2 .

It is not a de Polignac number, because 125806725 - 2⁵ = 125806693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125806725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 24915 + ... + 29535.

Almost surely, 2^125806725 is an apocalyptic number.

125806725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125806725 is a deficient number, since it is larger than the sum of its proper divisors (121927853).

125806725 is a wasteful number, since it uses less digits than its factorization.

125806725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659 (or 4640 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 125806725 is about 11216.3597035758. The cubic root of 125806725 is about 501.0733276203.

The spelling of 125806725 in words is "one hundred twenty-five million, eight hundred six thousand, seven hundred twenty-five".