6650625447 has 64 divisors (see below), whose sum is σ = 10250997120. Its totient is φ = 4312414080.

The previous prime is 6650625439. The next prime is 6650625463. The reversal of 6650625447 is 7445260566.

It is not a de Polignac number, because 6650625447 - 2³ = 6650625439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650425447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20979733 + ... + 20980049.

It is an arithmetic number, because the mean of its divisors is an integer number (160171830).

Almost surely, 2^6650625447 is an apocalyptic number.

6650625447 is a deficient number, since it is larger than the sum of its proper divisors (3600371673).

6650625447 is an equidigital number, since it uses as much as digits as its factorization.

6650625447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The square root of 6650625447 is about 81551.3669229400. The cubic root of 6650625447 is about 1880.5613088352.

The spelling of 6650625447 in words is "six billion, six hundred fifty million, six hundred twenty-five thousand, four hundred forty-seven".