6881532025 has 27 divisors (see below), whose sum is σ = 8743286221. Its totient is φ = 5372829440.

The previous prime is 6881531999. The next prime is 6881532041. The reversal of 6881532025 is 5202351886.

The square root of 6881532025 is 82955.

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

It can be written as a sum of positive squares in 4 ways, for example, as 376786921 + 6504745104 = 19411^2 + 80652^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6881532025 is a prime.

It is a super-2 number, since 2×6881532025² = 94710966022201201250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19494249 + ... + 19494601.

Almost surely, 2^6881532025 is an apocalyptic number.

6881532025 is the 82955-th square number.

6881532025 is the 41478-th centered octagonal number.

It is an amenable number.

6881532025 is a deficient number, since it is larger than the sum of its proper divisors (1861754196).

6881532025 is an frugal number, since it uses more digits than its factorization.

6881532025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The cubic root of 6881532025 is about 1902.0782453493.

The spelling of 6881532025 in words is "six billion, eight hundred eighty-one million, five hundred thirty-two thousand, twenty-five".