551838550 has 12 divisors (see below), whose sum is σ = 1026419796. Its totient is φ = 220735400.

The previous prime is 551838541. The next prime is 551838571. The reversal of 551838550 is 55838155.

It is a super-3 number, since 3×551838550³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5518336 + ... + 5518435.

It is an arithmetic number, because the mean of its divisors is an integer number (85534983).

Almost surely, 2^551838550 is an apocalyptic number.

551838550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551838550 is a deficient number, since it is larger than the sum of its proper divisors (474581246).

551838550 is a wasteful number, since it uses less digits than its factorization.

551838550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11036783 (or 11036778 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 40.

The square root of 551838550 is about 23491.2441134990. The cubic root of 551838550 is about 820.2332025600.

The spelling of 551838550 in words is "five hundred fifty-one million, eight hundred thirty-eight thousand, five hundred fifty".