808961053 has 2 divisors, whose sum is σ = 808961054. Its totient is φ = 808961052.

The previous prime is 808961051. The next prime is 808961059. The reversal of 808961053 is 350169808.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 808947364 + 13689 = 28442^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 808961053 - 2¹ = 808961051 is a prime.

Together with 808961051, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 808960997 and 808961015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808961051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404480526 + 404480527.

It is an arithmetic number, because the mean of its divisors is an integer number (404480527).

Almost surely, 2^808961053 is an apocalyptic number.

It is an amenable number.

808961053 is a deficient number, since it is larger than the sum of its proper divisors (1).

808961053 is an equidigital number, since it uses as much as digits as its factorization.

808961053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 808961053 is about 28442.2406466157. The cubic root of 808961053 is about 931.7710318956.

The spelling of 808961053 in words is "eight hundred eight million, nine hundred sixty-one thousand, fifty-three".