808685253 has 12 divisors (see below), whose sum is σ = 1168365900. Its totient is φ = 539001216.

The previous prime is 808685249. The next prime is 808685281. The reversal of 808685253 is 352586808.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 798458049 + 10227204 = 28257^2 + 3198^2 .

It is not a de Polignac number, because 808685253 - 2² = 808685249 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 808685199 and 808685208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808686253) 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, 51075 + ... + 65007.

It is an arithmetic number, because the mean of its divisors is an integer number (97363825).

Almost surely, 2^808685253 is an apocalyptic number.

It is an amenable number.

808685253 is a deficient number, since it is larger than the sum of its proper divisors (359680647).

808685253 is a wasteful number, since it uses less digits than its factorization.

808685253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20388 (or 20385 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 808685253 is about 28437.3918107832. The cubic root of 808685253 is about 931.6651299449.

It can be divided in two parts, 8086 and 85253, that added together give a palindrome (93339).

The spelling of 808685253 in words is "eight hundred eight million, six hundred eighty-five thousand, two hundred fifty-three".