53223257 has 2 divisors, whose sum is σ = 53223258. Its totient is φ = 53223256.

The previous prime is 53223227. The next prime is 53223271. The reversal of 53223257 is 75232235.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45954841 + 7268416 = 6779^2 + 2696^2 .

It is a cyclic number.

It is not a de Polignac number, because 53223257 - 2⁶ = 53223193 is a prime.

It is not a weakly prime, because it can be changed into another prime (53223217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26611628 + 26611629.

It is an arithmetic number, because the mean of its divisors is an integer number (26611629).

Almost surely, 2^53223257 is an apocalyptic number.

It is an amenable number.

53223257 is a deficient number, since it is larger than the sum of its proper divisors (1).

53223257 is an equidigital number, since it uses as much as digits as its factorization.

53223257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 29.

The square root of 53223257 is about 7295.4271293736. The cubic root of 53223257 is about 376.1552686972.

The spelling of 53223257 in words is "fifty-three million, two hundred twenty-three thousand, two hundred fifty-seven".