6653977025 has 12 divisors (see below), whose sum is σ = 8252057772. Its totient is φ = 5322455040.

The previous prime is 6653977009. The next prime is 6653977037. The reversal of 6653977025 is 5207793566.

It can be written as a sum of positive squares in 6 ways, for example, as 487173184 + 6166803841 = 22072^2 + 78529^2 .

It is not a de Polignac number, because 6653977025 - 2⁴ = 6653977009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241349 + ... + 267501.

It is an arithmetic number, because the mean of its divisors is an integer number (687671481).

Almost surely, 2^6653977025 is an apocalyptic number.

It is an amenable number.

6653977025 is a deficient number, since it is larger than the sum of its proper divisors (1598080747).

6653977025 is a wasteful number, since it uses less digits than its factorization.

6653977025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36340 (or 36335 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 50.

The square root of 6653977025 is about 81571.9132115951. The cubic root of 6653977025 is about 1880.8771582986.

The spelling of 6653977025 in words is "six billion, six hundred fifty-three million, nine hundred seventy-seven thousand, twenty-five".