125025865 has 8 divisors (see below), whose sum is σ = 151717320. Its totient is φ = 98896512.

The previous prime is 125025863. The next prime is 125025869. The reversal of 125025865 is 568520521.

It can be written as a sum of positive squares in 4 ways, for example, as 1971216 + 123054649 = 1404^2 + 11093^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125025865 - 2¹ = 125025863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125025865.

It is not an unprimeable number, because it can be changed into a prime (125025863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140034 + ... + 140923.

It is an arithmetic number, because the mean of its divisors is an integer number (18964665).

Almost surely, 2^125025865 is an apocalyptic number.

It is an amenable number.

125025865 is a deficient number, since it is larger than the sum of its proper divisors (26691455).

125025865 is an equidigital number, since it uses as much as digits as its factorization.

125025865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281051.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 125025865 is about 11181.4965456329. The cubic root of 125025865 is about 500.0344842883.

The spelling of 125025865 in words is "one hundred twenty-five million, twenty-five thousand, eight hundred sixty-five".