53775217 has 2 divisors, whose sum is σ = 53775218. Its totient is φ = 53775216.

The previous prime is 53775209. The next prime is 53775223. The reversal of 53775217 is 71257735.

53775217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50922496 + 2852721 = 7136^2 + 1689^2 .

It is a cyclic number.

It is not a de Polignac number, because 53775217 - 2³ = 53775209 is a prime.

It is not a weakly prime, because it can be changed into another prime (53775247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26887608 + 26887609.

It is an arithmetic number, because the mean of its divisors is an integer number (26887609).

Almost surely, 2^53775217 is an apocalyptic number.

It is an amenable number.

53775217 is a deficient number, since it is larger than the sum of its proper divisors (1).

53775217 is an equidigital number, since it uses as much as digits as its factorization.

53775217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51450, while the sum is 37.

The square root of 53775217 is about 7333.1587327699. The cubic root of 53775217 is about 377.4511247631.

The spelling of 53775217 in words is "fifty-three million, seven hundred seventy-five thousand, two hundred seventeen".