53208817 has 2 divisors, whose sum is σ = 53208818. Its totient is φ = 53208816.

The previous prime is 53208781. The next prime is 53208833. The reversal of 53208817 is 71880235.

Together with previous prime (53208781) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47831056 + 5377761 = 6916^2 + 2319^2 .

It is a cyclic number.

It is not a de Polignac number, because 53208817 - 2⁷ = 53208689 is a prime.

It is not a weakly prime, because it can be changed into another prime (53208847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26604408 + 26604409.

It is an arithmetic number, because the mean of its divisors is an integer number (26604409).

Almost surely, 2^53208817 is an apocalyptic number.

It is an amenable number.

53208817 is a deficient number, since it is larger than the sum of its proper divisors (1).

53208817 is an equidigital number, since it uses as much as digits as its factorization.

53208817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 53208817 is about 7294.4374011983. The cubic root of 53208817 is about 376.1212473960.

The spelling of 53208817 in words is "fifty-three million, two hundred eight thousand, eight hundred seventeen".