6989535253 has 8 divisors (see below), whose sum is σ = 7257242880. Its totient is φ = 6723606960.

The previous prime is 6989535181. The next prime is 6989535313. The reversal of 6989535253 is 3525359896.

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-6989535253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6989535194 and 6989535203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989535953) 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, 436825 + ... + 452542.

It is an arithmetic number, because the mean of its divisors is an integer number (907155360).

Almost surely, 2^6989535253 is an apocalyptic number.

It is an amenable number.

6989535253 is a deficient number, since it is larger than the sum of its proper divisors (267707627).

6989535253 is a wasteful number, since it uses less digits than its factorization.

6989535253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889667.

The product of its digits is 8748000, while the sum is 55.

The square root of 6989535253 is about 83603.4404375801. The cubic root of 6989535253 is about 1911.9774530241.

The spelling of 6989535253 in words is "six billion, nine hundred eighty-nine million, five hundred thirty-five thousand, two hundred fifty-three".