253040609 has 2 divisors, whose sum is σ = 253040610. Its totient is φ = 253040608.

The previous prime is 253040587. The next prime is 253040629. The reversal of 253040609 is 906040352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203689984 + 49350625 = 14272^2 + 7025^2 .

It is a cyclic number.

It is not a de Polignac number, because 253040609 - 2²⁰ = 251992033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253040629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126520304 + 126520305.

It is an arithmetic number, because the mean of its divisors is an integer number (126520305).

Almost surely, 2^253040609 is an apocalyptic number.

It is an amenable number.

253040609 is a deficient number, since it is larger than the sum of its proper divisors (1).

253040609 is an equidigital number, since it uses as much as digits as its factorization.

253040609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 253040609 is about 15907.2502023448. The cubic root of 253040609 is about 632.5041917786.

The spelling of 253040609 in words is "two hundred fifty-three million, forty thousand, six hundred nine".