2001050543500 has 48 divisors (see below), whose sum is σ = 4627370547072. Its totient is φ = 753336672000.

The previous prime is 2001050543473. The next prime is 2001050543501. The reversal of 2001050543500 is 53450501002.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2001050543501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117700356 + ... + 117717355.

It is an arithmetic number, because the mean of its divisors is an integer number (96403553064).

Almost surely, 2^{2001050543500} is an apocalyptic number.

2001050543500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001050543500 is an abundant number, since it is smaller than the sum of its proper divisors (2626320003572).

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

2001050543500 is a wasteful number, since it uses less digits than its factorization.

2001050543500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235417747 (or 235417735 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 2001050543500 in words is "two trillion, one billion, fifty million, five hundred forty-three thousand, five hundred".