2001054453550 has 24 divisors (see below), whose sum is σ = 3917853984600. Its totient is φ = 758294318880.

The previous prime is 2001054453529. The next prime is 2001054453613. The reversal of 2001054453550 is 553544501002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1053185605 + ... + 1053187504.

It is an arithmetic number, because the mean of its divisors is an integer number (163243916025).

Almost surely, 2^{2001054453550} is an apocalyptic number.

2001054453550 is a deficient number, since it is larger than the sum of its proper divisors (1916799531050).

2001054453550 is a wasteful number, since it uses less digits than its factorization.

2001054453550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106373140 (or 2106373135 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 2001054453550 its reverse (553544501002), we get a palindrome (2554598954552).

The spelling of 2001054453550 in words is "two trillion, one billion, fifty-four million, four hundred fifty-three thousand, five hundred fifty".