253956673 has 2 divisors, whose sum is σ = 253956674. Its totient is φ = 253956672.

The previous prime is 253956653. The next prime is 253956701. The reversal of 253956673 is 376659352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241118784 + 12837889 = 15528^2 + 3583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253956673 is a prime.

It is a super-2 number, since 2×253956673² = 128987983522457858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253956613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126978336 + 126978337.

It is an arithmetic number, because the mean of its divisors is an integer number (126978337).

Almost surely, 2^253956673 is an apocalyptic number.

It is an amenable number.

253956673 is a deficient number, since it is larger than the sum of its proper divisors (1).

253956673 is an equidigital number, since it uses as much as digits as its factorization.

253956673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 46.

The square root of 253956673 is about 15936.0181036544. The cubic root of 253956673 is about 633.2665417714.

The spelling of 253956673 in words is "two hundred fifty-three million, nine hundred fifty-six thousand, six hundred seventy-three".