685125 has 64 divisors (see below), whose sum is σ = 1497600. Its totient is φ = 302400.

The previous prime is 685123. The next prime is 685141. The reversal of 685125 is 521586.

It is not a de Polignac number, because 685125 - 2¹ = 685123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (2400) is a multiple of the sum of its prime factors (60).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23611 + ... + 23639.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2⁶⁸⁵¹²⁵ is an apocalyptic number.

It is an amenable number.

685125 is an abundant number, since it is smaller than the sum of its proper divisors (812475).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685125 is a wasteful number, since it uses less digits than its factorization.

685125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 44 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 685125 is about 827.7227796793. The cubic root of 685125 is about 88.1569598882.

The spelling of 685125 in words is "six hundred eighty-five thousand, one hundred twenty-five".