825187853 has 32 divisors (see below), whose sum is σ = 1006000128. Its totient is φ = 661939200.

The previous prime is 825187849. The next prime is 825187901. The reversal of 825187853 is 358781528.

It is a cyclic number.

It is not a de Polignac number, because 825187853 - 2² = 825187849 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 825187798 and 825187807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825187553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1218551 + ... + 1219227.

It is an arithmetic number, because the mean of its divisors is an integer number (31437504).

Almost surely, 2^825187853 is an apocalyptic number.

It is an amenable number.

825187853 is a deficient number, since it is larger than the sum of its proper divisors (180812275).

825187853 is a wasteful number, since it uses less digits than its factorization.

825187853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893.

The product of its digits is 537600, while the sum is 47.

The square root of 825187853 is about 28726.0831475508. The cubic root of 825187853 is about 937.9599082250.

The spelling of 825187853 in words is "eight hundred twenty-five million, one hundred eighty-seven thousand, eight hundred fifty-three".