125561585 has 8 divisors (see below), whose sum is σ = 151160256. Its totient is φ = 100125040.

The previous prime is 125561567. The next prime is 125561587. The reversal of 125561585 is 585165521.

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

It is not a de Polignac number, because 125561585 - 2²⁰ = 124513009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125561587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38819 + ... + 41928.

It is an arithmetic number, because the mean of its divisors is an integer number (18895032).

Almost surely, 2^125561585 is an apocalyptic number.

It is an amenable number.

125561585 is a deficient number, since it is larger than the sum of its proper divisors (25598671).

125561585 is an equidigital number, since it uses as much as digits as its factorization.

125561585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81063.

The product of its digits is 60000, while the sum is 38.

The square root of 125561585 is about 11205.4265871496. The cubic root of 125561585 is about 500.7476614475.

It can be divided in two parts, 12556 and 1585, that added together give a palindrome (14141).

The spelling of 125561585 in words is "one hundred twenty-five million, five hundred sixty-one thousand, five hundred eighty-five".