808605253 has 2 divisors, whose sum is σ = 808605254. Its totient is φ = 808605252.

The previous prime is 808605251. The next prime is 808605277. The reversal of 808605253 is 352506808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719151489 + 89453764 = 26817^2 + 9458^2 .

It is a cyclic number.

It is not a de Polignac number, because 808605253 - 2¹ = 808605251 is a prime.

Together with 808605251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808605251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404302626 + 404302627.

It is an arithmetic number, because the mean of its divisors is an integer number (404302627).

Almost surely, 2^808605253 is an apocalyptic number.

It is an amenable number.

808605253 is a deficient number, since it is larger than the sum of its proper divisors (1).

808605253 is an equidigital number, since it uses as much as digits as its factorization.

808605253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 808605253 is about 28435.9851772363. The cubic root of 808605253 is about 931.6344069626.

The spelling of 808605253 in words is "eight hundred eight million, six hundred five thousand, two hundred fifty-three".