253389389 has 8 divisors (see below), whose sum is σ = 283167360. Its totient is φ = 224735200.

The previous prime is 253389379. The next prime is 253389421. The reversal of 253389389 is 983983352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253389389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253389349) 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, 280469 + ... + 281370.

It is an arithmetic number, because the mean of its divisors is an integer number (35395920).

Almost surely, 2^253389389 is an apocalyptic number.

It is an amenable number.

253389389 is a deficient number, since it is larger than the sum of its proper divisors (29777971).

253389389 is a wasteful number, since it uses less digits than its factorization.

253389389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561891.

The product of its digits is 1399680, while the sum is 50.

The square root of 253389389 is about 15918.2093528135. The cubic root of 253389389 is about 632.7946636428.

The spelling of 253389389 in words is "two hundred fifty-three million, three hundred eighty-nine thousand, three hundred eighty-nine".