253698009 has 8 divisors (see below), whose sum is σ = 338528832. Its totient is φ = 168999600.

The previous prime is 253697989. The next prime is 253698047. The reversal of 253698009 is 900896352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253698009 - 2⁷ = 253697881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253698059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28542 + ... + 36359.

It is an arithmetic number, because the mean of its divisors is an integer number (42316104).

Almost surely, 2^253698009 is an apocalyptic number.

It is an amenable number.

253698009 is a deficient number, since it is larger than the sum of its proper divisors (84830823).

253698009 is a wasteful number, since it uses less digits than its factorization.

253698009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66207.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 253698009 is about 15927.9003324355. The cubic root of 253698009 is about 633.0514671559.

The spelling of 253698009 in words is "two hundred fifty-three million, six hundred ninety-eight thousand, nine".