2001647552 has 28 divisors (see below), whose sum is σ = 4068903216. Its totient is φ = 976412160.

The previous prime is 2001647537. The next prime is 2001647573. The reversal of 2001647552 is 2557461002.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378788 + ... + 384035.

It is an arithmetic number, because the mean of its divisors is an integer number (145317972).

Almost surely, 2^2001647552 is an apocalyptic number.

It is an amenable number.

2001647552 is an abundant number, since it is smaller than the sum of its proper divisors (2067255664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001647552 is an equidigital number, since it uses as much as digits as its factorization.

2001647552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762876 (or 762866 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 2001647552 is about 44739.7759493719. The cubic root of 2001647552 is about 1260.2669191802.

The spelling of 2001647552 in words is "two billion, one million, six hundred forty-seven thousand, five hundred fifty-two".