6625251705 has 16 divisors (see below), whose sum is σ = 10858950144. Its totient is φ = 3447285120.

The previous prime is 6625251701. The next prime is 6625251751. The reversal of 6625251705 is 5071525266.

It is not a de Polignac number, because 6625251705 - 2² = 6625251701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6625251701) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5385769 + ... + 5386998.

It is an arithmetic number, because the mean of its divisors is an integer number (678684384).

Almost surely, 2^6625251705 is an apocalyptic number.

It is an amenable number.

6625251705 is a deficient number, since it is larger than the sum of its proper divisors (4233698439).

6625251705 is a wasteful number, since it uses less digits than its factorization.

6625251705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772816.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 6625251705 is about 81395.6491773363. The cubic root of 6625251705 is about 1878.1666623667.

The spelling of 6625251705 in words is "six billion, six hundred twenty-five million, two hundred fifty-one thousand, seven hundred five".