100051020550 has 48 divisors (see below), whose sum is σ = 212198730912. Its totient is φ = 34768857600.

The previous prime is 100051020367. The next prime is 100051020551. The reversal of 100051020550 is 55020150001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100051020551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4516146 + ... + 4538245.

It is an arithmetic number, because the mean of its divisors is an integer number (4420806894).

Almost surely, 2^100051020550 is an apocalyptic number.

100051020550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100051020550 is an abundant number, since it is smaller than the sum of its proper divisors (112147710362).

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

100051020550 is a wasteful number, since it uses less digits than its factorization.

100051020550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9054433 (or 9054428 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

Adding to 100051020550 its reverse (55020150001), we get a palindrome (155071170551).

The spelling of 100051020550 in words is "one hundred billion, fifty-one million, twenty thousand, five hundred fifty".