825502685 has 16 divisors (see below), whose sum is σ = 1137493632. Its totient is φ = 563371200.

The previous prime is 825502681. The next prime is 825502687. The reversal of 825502685 is 586205528.

It is not a de Polignac number, because 825502685 - 2² = 825502681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825502681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48506 + ... + 63275.

It is an arithmetic number, because the mean of its divisors is an integer number (71093352).

Almost surely, 2^825502685 is an apocalyptic number.

It is an amenable number.

825502685 is a deficient number, since it is larger than the sum of its proper divisors (311990947).

825502685 is a wasteful number, since it uses less digits than its factorization.

825502685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112004.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 825502685 is about 28731.5625227728. The cubic root of 825502685 is about 938.0791789445.

The spelling of 825502685 in words is "eight hundred twenty-five million, five hundred two thousand, six hundred eighty-five".