5515550 has 12 divisors (see below), whose sum is σ = 10259016. Its totient is φ = 2206200.

The previous prime is 5515541. The next prime is 5515579. The reversal of 5515550 is 555155.

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, 55106 + ... + 55205.

It is an arithmetic number, because the mean of its divisors is an integer number (854918).

Almost surely, 2^5515550 is an apocalyptic number.

5515550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5515550 is a deficient number, since it is larger than the sum of its proper divisors (4743466).

5515550 is a wasteful number, since it uses less digits than its factorization.

5515550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110323 (or 110318 counting only the distinct ones).

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

The square root of 5515550 is about 2348.5208110638. The cubic root of 5515550 is about 176.6836145285.

The spelling of 5515550 in words is "five million, five hundred fifteen thousand, five hundred fifty".