253533569 has 2 divisors, whose sum is σ = 253533570. Its totient is φ = 253533568.

The previous prime is 253533541. The next prime is 253533571. The reversal of 253533569 is 965335352.

253533569 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., 198951025 + 54582544 = 14105^2 + 7388^2 .

It is a cyclic number.

It is not a de Polignac number, because 253533569 - 2²⁰ = 252484993 is a prime.

It is a super-2 number, since 2×253533569² = 128558541219755522, which contains 22 as substring.

Together with 253533571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253533769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126766784 + 126766785.

It is an arithmetic number, because the mean of its divisors is an integer number (126766785).

Almost surely, 2^253533569 is an apocalyptic number.

It is an amenable number.

253533569 is a deficient number, since it is larger than the sum of its proper divisors (1).

253533569 is an equidigital number, since it uses as much as digits as its factorization.

253533569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 364500, while the sum is 41.

The square root of 253533569 is about 15922.7374844905. The cubic root of 253533569 is about 632.9146621370.

The spelling of 253533569 in words is "two hundred fifty-three million, five hundred thirty-three thousand, five hundred sixty-nine".