5551550 has 12 divisors (see below), whose sum is σ = 10325976. Its totient is φ = 2220600.

The previous prime is 5551531. The next prime is 5551583. The reversal of 5551550 is 551555.

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, 55466 + ... + 55565.

It is an arithmetic number, because the mean of its divisors is an integer number (860498).

Almost surely, 2^5551550 is an apocalyptic number.

5551550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5551550 is a deficient number, since it is larger than the sum of its proper divisors (4774426).

5551550 is a wasteful number, since it uses less digits than its factorization.

5551550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111043 (or 111038 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 26.

The square root of 5551550 is about 2356.1727440916. The cubic root of 5551550 is about 177.0671859171.

The spelling of 5551550 in words is "five million, five hundred fifty-one thousand, five hundred fifty".