500055550 has 24 divisors (see below), whose sum is σ = 932362200. Its totient is φ = 199536480.

The previous prime is 500055539. The next prime is 500055559. The reversal of 500055550 is 55550005.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500055559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9016 + ... + 32884.

It is an arithmetic number, because the mean of its divisors is an integer number (38848425).

Almost surely, 2^500055550 is an apocalyptic number.

500055550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

500055550 is a deficient number, since it is larger than the sum of its proper divisors (432306650).

500055550 is a wasteful number, since it uses less digits than its factorization.

500055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24300 (or 24295 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 500055550 is about 22361.9218762610. The cubic root of 500055550 is about 793.7299182718.

It can be divided in two parts, 50005 and 5550, that added together give a palindrome (55555).

The spelling of 500055550 in words is "five hundred million, fifty-five thousand, five hundred fifty".