1001010555550 has 24 divisors (see below), whose sum is σ = 1862887861296. Its totient is φ = 400187399040.

The previous prime is 1001010555497. The next prime is 1001010555619. The reversal of 1001010555550 is 555550101001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5327307 + ... + 5512006.

It is an arithmetic number, because the mean of its divisors is an integer number (77620327554).

Almost surely, 2^{1001010555550} is an apocalyptic number.

1001010555550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001010555550 is a deficient number, since it is larger than the sum of its proper divisors (861877305746).

1001010555550 is a wasteful number, since it uses less digits than its factorization.

1001010555550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10841172 (or 10841167 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 28.

Adding to 1001010555550 its reverse (555550101001), we get a palindrome (1556560656551).

The spelling of 1001010555550 in words is "one trillion, one billion, ten million, five hundred fifty-five thousand, five hundred fifty".