6711994525 has 6 divisors (see below), whose sum is σ = 8322873242. Its totient is φ = 5369595600.

The previous prime is 6711994493. The next prime is 6711994537. The reversal of 6711994525 is 5254991176.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1197298404 + 5514696121 = 34602^2 + 74261^2 .

It is not a de Polignac number, because 6711994525 - 2⁵ = 6711994493 is a prime.

It is a Duffinian number.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 134239866 + ... + 134239915.

Almost surely, 2^6711994525 is an apocalyptic number.

It is an amenable number.

6711994525 is a deficient number, since it is larger than the sum of its proper divisors (1610878717).

6711994525 is a wasteful number, since it uses less digits than its factorization.

6711994525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268479791 (or 268479786 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

The square root of 6711994525 is about 81926.7631790735. The cubic root of 6711994525 is about 1886.3279415619.

The spelling of 6711994525 in words is "six billion, seven hundred eleven million, nine hundred ninety-four thousand, five hundred twenty-five".