6889830025 has 27 divisors (see below), whose sum is σ = 9258375711. Its totient is φ = 5083890240.

The previous prime is 6889829983. The next prime is 6889830037. The reversal of 6889830025 is 5200389886.

The square root of 6889830025 is 83005.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 5782537849 + 1107292176 = 76043^2 + 33276^2 .

It is not a de Polignac number, because 6889830025 - 2⁷ = 6889829897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5394687 + ... + 5395963.

Almost surely, 2^6889830025 is an apocalyptic number.

6889830025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6889830025 is the 83005-th square number.

6889830025 is the 41503-rd centered octagonal number.

It is an amenable number.

6889830025 is a deficient number, since it is larger than the sum of its proper divisors (2368545686).

6889830025 is an equidigital number, since it uses as much as digits as its factorization.

6889830025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The cubic root of 6889830025 is about 1902.8424698168.

Multiplying 6889830025 by its sum of digits (49), we get a square (337601671225 = 581035²).

The spelling of 6889830025 in words is "six billion, eight hundred eighty-nine million, eight hundred thirty thousand, twenty-five".