253333369 has 2 divisors, whose sum is σ = 253333370. Its totient is φ = 253333368.

The previous prime is 253333363. The next prime is 253333411. The reversal of 253333369 is 963333352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145443600 + 107889769 = 12060^2 + 10387^2 .

It is a cyclic number.

It is not a de Polignac number, because 253333369 - 2³ = 253333361 is a prime.

It is a super-2 number, since 2×253333369² = 128355591697780322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253333361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126666684 + 126666685.

It is an arithmetic number, because the mean of its divisors is an integer number (126666685).

Almost surely, 2^253333369 is an apocalyptic number.

It is an amenable number.

253333369 is a deficient number, since it is larger than the sum of its proper divisors (1).

253333369 is an equidigital number, since it uses as much as digits as its factorization.

253333369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 37.

The square root of 253333369 is about 15916.4496355186. The cubic root of 253333369 is about 632.7480268967.

The spelling of 253333369 in words is "two hundred fifty-three million, three hundred thirty-three thousand, three hundred sixty-nine".