5551551151550 has 12 divisors (see below), whose sum is σ = 10325885141976. Its totient is φ = 2220620460600.

The previous prime is 5551551151513. The next prime is 5551551151613. The reversal of 5551551151550 is 551511551555.

It is a super-2 number, since 2×5551551151550² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55515511466 + ... + 55515511565.

It is an arithmetic number, because the mean of its divisors is an integer number (860490428498).

Almost surely, 2^{5551551151550} is an apocalyptic number.

5551551151550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5551551151550 is a deficient number, since it is larger than the sum of its proper divisors (4774333990426).

5551551151550 is a wasteful number, since it uses less digits than its factorization.

5551551151550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111031023043 (or 111031023038 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 44.

The spelling of 5551551151550 in words is "five trillion, five hundred fifty-one billion, five hundred fifty-one million, one hundred fifty-one thousand, five hundred fifty".