505504050 has 48 divisors (see below), whose sum is σ = 1257723072. Its totient is φ = 134363200.

The previous prime is 505504039. The next prime is 505504067. The reversal of 505504050 is 50405505.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 505504050.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42235 + ... + 52865.

It is an arithmetic number, because the mean of its divisors is an integer number (26202564).

Almost surely, 2^505504050 is an apocalyptic number.

505504050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 505504050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628861536).

505504050 is an abundant number, since it is smaller than the sum of its proper divisors (752219022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505504050 is a wasteful number, since it uses less digits than its factorization.

505504050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10963 (or 10958 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 505504050 is about 22483.4172224775. The cubic root of 505504050 is about 796.6022825330.

Adding to 505504050 its reverse (50405505), we get a palindrome (555909555).

The spelling of 505504050 in words is "five hundred five million, five hundred four thousand, fifty".