6855522025 has 48 divisors (see below), whose sum is σ = 9697200768. Its totient is φ = 4759040000.

The previous prime is 6855522013. The next prime is 6855522043. The reversal of 6855522025 is 5202255586.

It is a de Polignac number, because none of the positive numbers 2^k-6855522025 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4281225 + ... + 4282825.

It is an arithmetic number, because the mean of its divisors is an integer number (202025016).

Almost surely, 2^6855522025 is an apocalyptic number.

It is an amenable number.

6855522025 is a deficient number, since it is larger than the sum of its proper divisors (2841678743).

6855522025 is a wasteful number, since it uses less digits than its factorization.

6855522025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

The square root of 6855522025 is about 82798.0798388465. The cubic root of 6855522025 is about 1899.6788030451.

The spelling of 6855522025 in words is "six billion, eight hundred fifty-five million, five hundred twenty-two thousand, twenty-five".