685275245 has 8 divisors (see below), whose sum is σ = 824573184. Its totient is φ = 546724944.

The previous prime is 685275229. The next prime is 685275247. The reversal of 685275245 is 542572586.

685275245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 685275245 - 2⁴ = 685275229 is a prime.

It is a super-2 number, since 2×685275245² = 939204322819620050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 685275196 and 685275205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685275247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184889 + ... + 188558.

It is an arithmetic number, because the mean of its divisors is an integer number (103071648).

Almost surely, 2^685275245 is an apocalyptic number.

It is an amenable number.

685275245 is a deficient number, since it is larger than the sum of its proper divisors (139297939).

685275245 is a wasteful number, since it uses less digits than its factorization.

685275245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373819.

The product of its digits is 672000, while the sum is 44.

The square root of 685275245 is about 26177.7624139268. The cubic root of 685275245 is about 881.6340356601.

The spelling of 685275245 in words is "six hundred eighty-five million, two hundred seventy-five thousand, two hundred forty-five".