53770289 has 2 divisors, whose sum is σ = 53770290. Its totient is φ = 53770288.

The previous prime is 53770273. The next prime is 53770291. The reversal of 53770289 is 98207735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 9985600 = 6617^2 + 3160^2 .

It is a cyclic number.

It is not a de Polignac number, because 53770289 - 2⁴ = 53770273 is a prime.

It is a Sophie Germain prime.

Together with 53770291, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53770489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26885144 + 26885145.

It is an arithmetic number, because the mean of its divisors is an integer number (26885145).

Almost surely, 2^53770289 is an apocalyptic number.

It is an amenable number.

53770289 is a deficient number, since it is larger than the sum of its proper divisors (1).

53770289 is an equidigital number, since it uses as much as digits as its factorization.

53770289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 53770289 is about 7332.8227170715. The cubic root of 53770289 is about 377.4395944457.

The spelling of 53770289 in words is "fifty-three million, seven hundred seventy thousand, two hundred eighty-nine".