253209558369 has 8 divisors (see below), whose sum is σ = 337620189312. Its totient is φ = 168802649840.

The previous prime is 253209558319. The next prime is 253209558377. The reversal of 253209558369 is 963855902352.

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

It is a cyclic number.

It is not a de Polignac number, because 253209558369 - 2⁹ = 253209557857 is a prime.

It is a super-2 number, since 2×253209558369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253209558319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767814 + ... + 1046879.

It is an arithmetic number, because the mean of its divisors is an integer number (42202523664).

Almost surely, 2^253209558369 is an apocalyptic number.

It is an amenable number.

253209558369 is a deficient number, since it is larger than the sum of its proper divisors (84410630943).

253209558369 is a wasteful number, since it uses less digits than its factorization.

253209558369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861207.

The product of its (nonzero) digits is 17496000, while the sum is 57.

The spelling of 253209558369 in words is "two hundred fifty-three billion, two hundred nine million, five hundred fifty-eight thousand, three hundred sixty-nine".