505606550 has 12 divisors (see below), whose sum is σ = 940428276. Its totient is φ = 202242600.

The previous prime is 505606501. The next prime is 505606567. The reversal of 505606550 is 55606505.

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, 5056016 + ... + 5056115.

It is an arithmetic number, because the mean of its divisors is an integer number (78369023).

Almost surely, 2^505606550 is an apocalyptic number.

505606550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505606550 is a deficient number, since it is larger than the sum of its proper divisors (434821726).

505606550 is a wasteful number, since it uses less digits than its factorization.

505606550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10112143 (or 10112138 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 505606550 is about 22485.6965647053. The cubic root of 505606550 is about 796.6561206877.

The spelling of 505606550 in words is "five hundred five million, six hundred six thousand, five hundred fifty".