5505538550 has 24 divisors (see below), whose sum is σ = 10242714216. Its totient is φ = 2201696640.

The previous prime is 5505538541. The next prime is 5505538579. The reversal of 5505538550 is 558355055.

It is a super-2 number, since 2×5505538550² = 60621909451072205000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5505538498 and 5505538507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257054 + ... + 277646.

It is an arithmetic number, because the mean of its divisors is an integer number (426779759).

Almost surely, 2^5505538550 is an apocalyptic number.

5505538550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5505538550 is a deficient number, since it is larger than the sum of its proper divisors (4737175666).

5505538550 is a wasteful number, since it uses less digits than its factorization.

5505538550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25952 (or 25947 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The square root of 5505538550 is about 74199.3163715138. The cubic root of 5505538550 is about 1765.7664843627.

The spelling of 5505538550 in words is "five billion, five hundred five million, five hundred thirty-eight thousand, five hundred fifty".