253578009 has 32 divisors (see below), whose sum is σ = 366446080. Its totient is φ = 155457792.

The previous prime is 253577963. The next prime is 253578011. The reversal of 253578009 is 900875352.

It is not a de Polignac number, because 253578009 - 2⁷ = 253577881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253578029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 752289 + ... + 752625.

It is an arithmetic number, because the mean of its divisors is an integer number (11451440).

Almost surely, 2^253578009 is an apocalyptic number.

It is an amenable number.

253578009 is a deficient number, since it is larger than the sum of its proper divisors (112868071).

253578009 is a wasteful number, since it uses less digits than its factorization.

253578009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 253578009 is about 15924.1329120301. The cubic root of 253578009 is about 632.9516395998.

The spelling of 253578009 in words is "two hundred fifty-three million, five hundred seventy-eight thousand, nine".