53838689 has 2 divisors, whose sum is σ = 53838690. Its totient is φ = 53838688.

The previous prime is 53838683. The next prime is 53838691. The reversal of 53838689 is 98683835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48888064 + 4950625 = 6992^2 + 2225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53838689 is a prime.

Together with 53838691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53838683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26919344 + 26919345.

It is an arithmetic number, because the mean of its divisors is an integer number (26919345).

Almost surely, 2^53838689 is an apocalyptic number.

It is an amenable number.

53838689 is a deficient number, since it is larger than the sum of its proper divisors (1).

53838689 is an equidigital number, since it uses as much as digits as its factorization.

53838689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 50.

The square root of 53838689 is about 7337.4851958965. The cubic root of 53838689 is about 377.5995708282.

The spelling of 53838689 in words is "fifty-three million, eight hundred thirty-eight thousand, six hundred eighty-nine".