253341857 has 2 divisors, whose sum is σ = 253341858. Its totient is φ = 253341856.

The previous prime is 253341799. The next prime is 253341859. The reversal of 253341857 is 758143352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253319056 + 22801 = 15916^2 + 151^2 .

It is a cyclic number.

It is not a de Polignac number, because 253341857 - 2¹⁰ = 253340833 is a prime.

Together with 253341859, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253341857.

It is not a weakly prime, because it can be changed into another prime (253341859) 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, 126670928 + 126670929.

It is an arithmetic number, because the mean of its divisors is an integer number (126670929).

Almost surely, 2^253341857 is an apocalyptic number.

It is an amenable number.

253341857 is a deficient number, since it is larger than the sum of its proper divisors (1).

253341857 is an equidigital number, since it uses as much as digits as its factorization.

253341857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 253341857 is about 15916.7162756644. The cubic root of 253341857 is about 632.7550936132.

The spelling of 253341857 in words is "two hundred fifty-three million, three hundred forty-one thousand, eight hundred fifty-seven".