253696609 has 2 divisors, whose sum is σ = 253696610. Its totient is φ = 253696608.

The previous prime is 253696589. The next prime is 253696631. The reversal of 253696609 is 906696352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160149025 + 93547584 = 12655^2 + 9672^2 .

It is a cyclic number.

It is not a de Polignac number, because 253696609 - 2¹¹ = 253694561 is a prime.

It is not a weakly prime, because it can be changed into another prime (253696699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126848304 + 126848305.

It is an arithmetic number, because the mean of its divisors is an integer number (126848305).

Almost surely, 2^253696609 is an apocalyptic number.

It is an amenable number.

253696609 is a deficient number, since it is larger than the sum of its proper divisors (1).

253696609 is an equidigital number, since it uses as much as digits as its factorization.

253696609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 253696609 is about 15927.8563843350. The cubic root of 253696609 is about 633.0503026826.

The spelling of 253696609 in words is "two hundred fifty-three million, six hundred ninety-six thousand, six hundred nine".