6993355825 has 12 divisors (see below), whose sum is σ = 8719677148. Its totient is φ = 5563771200.

The previous prime is 6993355819. The next prime is 6993355843. The reversal of 6993355825 is 5285533996.

It can be written as a sum of positive squares in 6 ways, for example, as 2083831201 + 4909524624 = 45649^2 + 70068^2 .

It is not a de Polignac number, because 6993355825 - 2¹¹ = 6993353777 is a prime.

It is a super-2 number, since 2×6993355825² = 97814051390122861250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 768222 + ... + 777271.

Almost surely, 2^6993355825 is an apocalyptic number.

It is an amenable number.

6993355825 is a deficient number, since it is larger than the sum of its proper divisors (1726321323).

6993355825 is a wasteful number, since it uses less digits than its factorization.

6993355825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545684 (or 1545679 counting only the distinct ones).

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

The square root of 6993355825 is about 83626.2866866633. The cubic root of 6993355825 is about 1912.3257602522.

The spelling of 6993355825 in words is "six billion, nine hundred ninety-three million, three hundred fifty-five thousand, eight hundred twenty-five".