253209383247 has 8 divisors (see below), whose sum is σ = 349254321840. Its totient is φ = 162985350080.

The previous prime is 253209383243. The next prime is 253209383279. The reversal of 253209383247 is 742383902352.

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 253209383247 - 2² = 253209383243 is a prime.

It is a super-2 number, since 2×253209383247² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253209383196 and 253209383205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253209383243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455226254 + ... + 1455226427.

It is an arithmetic number, because the mean of its divisors is an integer number (43656790230).

Almost surely, 2^253209383247 is an apocalyptic number.

253209383247 is a deficient number, since it is larger than the sum of its proper divisors (96044938593).

253209383247 is a wasteful number, since it uses less digits than its factorization.

253209383247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910452713.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 253209383247 in words is "two hundred fifty-three billion, two hundred nine million, three hundred eighty-three thousand, two hundred forty-seven".