53656289 has 2 divisors, whose sum is σ = 53656290. Its totient is φ = 53656288.

The previous prime is 53656283. The next prime is 53656297. The reversal of 53656289 is 98265635.

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., 53173264 + 483025 = 7292^2 + 695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53656289 is a prime.

It is a super-3 number, since 3×53656289³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53656283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26828144 + 26828145.

It is an arithmetic number, because the mean of its divisors is an integer number (26828145).

Almost surely, 2^53656289 is an apocalyptic number.

It is an amenable number.

53656289 is a deficient number, since it is larger than the sum of its proper divisors (1).

53656289 is an equidigital number, since it uses as much as digits as its factorization.

53656289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 53656289 is about 7325.0453240919. The cubic root of 53656289 is about 377.1726653861.

The spelling of 53656289 in words is "fifty-three million, six hundred fifty-six thousand, two hundred eighty-nine".