551010045550 has 24 divisors (see below), whose sum is σ = 1024962273216. Its totient is φ = 220386042240.

The previous prime is 551010045511. The next prime is 551010045559. The reversal of 551010045550 is 55540010155.

It is a super-2 number, since 2×551010045550² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551010045559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178467 + ... + 1064833.

It is an arithmetic number, because the mean of its divisors is an integer number (42706761384).

Almost surely, 2^551010045550 is an apocalyptic number.

551010045550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551010045550 is a deficient number, since it is larger than the sum of its proper divisors (473952227666).

551010045550 is a wasteful number, since it uses less digits than its factorization.

551010045550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898812 (or 898807 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 551010045550 in words is "five hundred fifty-one billion, ten million, forty-five thousand, five hundred fifty".