53355689 has 2 divisors, whose sum is σ = 53355690. Its totient is φ = 53355688.

The previous prime is 53355671. The next prime is 53355691. The reversal of 53355689 is 98655335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53042089 + 313600 = 7283^2 + 560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53355689 is a prime.

Together with 53355691, it forms a pair of twin primes.

It is a Chen prime.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26677844 + 26677845.

It is an arithmetic number, because the mean of its divisors is an integer number (26677845).

Almost surely, 2^53355689 is an apocalyptic number.

It is an amenable number.

53355689 is a deficient number, since it is larger than the sum of its proper divisors (1).

53355689 is an equidigital number, since it uses as much as digits as its factorization.

53355689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 44.

The square root of 53355689 is about 7304.4978609073. The cubic root of 53355689 is about 376.4669979250.

The spelling of 53355689 in words is "fifty-three million, three hundred fifty-five thousand, six hundred eighty-nine".