6825457551 has 32 divisors (see below), whose sum is σ = 10523478528. Its totient is φ = 3889034240.

The previous prime is 6825457549. The next prime is 6825457579. The reversal of 6825457551 is 1557545286.

6825457551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6825457551 - 2¹ = 6825457549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6825457551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6825457531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545275 + ... + 557651.

It is an arithmetic number, because the mean of its divisors is an integer number (328858704).

Almost surely, 2^6825457551 is an apocalyptic number.

6825457551 is a deficient number, since it is larger than the sum of its proper divisors (3698020977).

6825457551 is a wasteful number, since it uses less digits than its factorization.

6825457551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391.

The product of its digits is 1680000, while the sum is 48.

The square root of 6825457551 is about 82616.3273875086. The cubic root of 6825457551 is about 1896.8977585053.

It can be divided in two parts, 682545 and 7551, that added together give a palindrome (690096).

The spelling of 6825457551 in words is "six billion, eight hundred twenty-five million, four hundred fifty-seven thousand, five hundred fifty-one".