125865585 has 24 divisors (see below), whose sum is σ = 221869440. Its totient is φ = 65989152.

The previous prime is 125865583. The next prime is 125865589. The reversal of 125865585 is 585568521.

125865585 is a `hidden beast` number, since 1 + 2 + 5 + 8 + 65 + 585 = 666.

It is not a de Polignac number, because 125865585 - 2¹ = 125865583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 125865585.

It is not an unprimeable number, because it can be changed into a prime (125865581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21049 + ... + 26358.

It is an arithmetic number, because the mean of its divisors is an integer number (9244560).

Almost surely, 2^125865585 is an apocalyptic number.

125865585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125865585 is a deficient number, since it is larger than the sum of its proper divisors (96003855).

125865585 is a wasteful number, since it uses less digits than its factorization.

125865585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47477 (or 47474 counting only the distinct ones).

The product of its digits is 480000, while the sum is 45.

The square root of 125865585 is about 11218.9832427007. The cubic root of 125865585 is about 501.1514595794.

The spelling of 125865585 in words is "one hundred twenty-five million, eight hundred sixty-five thousand, five hundred eighty-five".