6625111513 has 8 divisors (see below), whose sum is σ = 6691246848. Its totient is φ = 6559011264.

The previous prime is 6625111499. The next prime is 6625111529. The reversal of 6625111513 is 3151115266.

It is a happy number.

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 6625111513 - 2⁹ = 6625111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6625111573) 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, 539520 + ... + 551662.

It is an arithmetic number, because the mean of its divisors is an integer number (836405856).

Almost surely, 2^6625111513 is an apocalyptic number.

It is an amenable number.

6625111513 is a deficient number, since it is larger than the sum of its proper divisors (66135335).

6625111513 is a wasteful number, since it uses less digits than its factorization.

6625111513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17543.

The product of its digits is 5400, while the sum is 31.

The square root of 6625111513 is about 81394.7879965296. The cubic root of 6625111513 is about 1878.1534147795.

Adding to 6625111513 its reverse (3151115266), we get a palindrome (9776226779).

The spelling of 6625111513 in words is "six billion, six hundred twenty-five million, one hundred eleven thousand, five hundred thirteen".