53256289 has 2 divisors, whose sum is σ = 53256290. Its totient is φ = 53256288.

The previous prime is 53256277. The next prime is 53256323. The reversal of 53256289 is 98265235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 2917264 = 7095^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 53256289 - 2²³ = 44867681 is a prime.

It is not a weakly prime, because it can be changed into another prime (53256689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26628144 + 26628145.

It is an arithmetic number, because the mean of its divisors is an integer number (26628145).

Almost surely, 2^53256289 is an apocalyptic number.

It is an amenable number.

53256289 is a deficient number, since it is larger than the sum of its proper divisors (1).

53256289 is an equidigital number, since it uses as much as digits as its factorization.

53256289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 53256289 is about 7297.6906621204. The cubic root of 53256289 is about 376.2330704700.

The spelling of 53256289 in words is "fifty-three million, two hundred fifty-six thousand, two hundred eighty-nine".