253305331 has 2 divisors, whose sum is σ = 253305332. Its totient is φ = 253305330.

The previous prime is 253305329. The next prime is 253305341. The reversal of 253305331 is 133503352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253305331 - 2¹ = 253305329 is a prime.

It is a super-2 number, since 2×253305331² = 128327181426039122, which contains 22 as substring.

Together with 253305329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 253305296 and 253305305.

It is not a weakly prime, because it can be changed into another prime (253305301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126652665 + 126652666.

It is an arithmetic number, because the mean of its divisors is an integer number (126652666).

Almost surely, 2^253305331 is an apocalyptic number.

253305331 is a deficient number, since it is larger than the sum of its proper divisors (1).

253305331 is an equidigital number, since it uses as much as digits as its factorization.

253305331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 253305331 is about 15915.5688242676. The cubic root of 253305331 is about 632.7246826319.

Adding to 253305331 its reverse (133503352), we get a palindrome (386808683).

The spelling of 253305331 in words is "two hundred fifty-three million, three hundred five thousand, three hundred thirty-one".