685082525257 has 12 divisors (see below), whose sum is σ = 741861820224. Its totient is φ = 632360941680.

The previous prime is 685082525249. The next prime is 685082525263. The reversal of 685082525257 is 752525280586.

685082525257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 685082525257 - 2³ = 685082525249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 685082525198 and 685082525207.

It is not an unprimeable number, because it can be changed into a prime (685082525297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6162588 + ... + 6272770.

It is an arithmetic number, because the mean of its divisors is an integer number (61821818352).

Almost surely, 2^685082525257 is an apocalyptic number.

It is an amenable number.

685082525257 is a deficient number, since it is larger than the sum of its proper divisors (56779294967).

685082525257 is a wasteful number, since it uses less digits than its factorization.

685082525257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147000 (or 146987 counting only the distinct ones).

The product of its (nonzero) digits is 13440000, while the sum is 55.

The spelling of 685082525257 in words is "six hundred eighty-five billion, eighty-two million, five hundred twenty-five thousand, two hundred fifty-seven".