505887228450 has 54 divisors (see below), whose sum is σ = 1359190891539. Its totient is φ = 134899237440.

The previous prime is 505887228383. The next prime is 505887228529. The reversal of 505887228450 is 54822788505.

505887228450 is a `hidden beast` number, since 5 + 0 + 588 + 7 + 2 + 2 + 8 + 4 + 50 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 240716815641 + 265170412809 = 490629^2 + 514947^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=502935.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15071286 + ... + 15104814.

Almost surely, 2^505887228450 is an apocalyptic number.

505887228450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505887228450 is an abundant number, since it is smaller than the sum of its proper divisors (853303663089).

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

505887228450 is an frugal number, since it uses more digits than its factorization.

505887228450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67076 (or 33539 counting only the distinct ones).

The product of its (nonzero) digits is 7168000, while the sum is 54.

The spelling of 505887228450 in words is "five hundred five billion, eight hundred eighty-seven million, two hundred twenty-eight thousand, four hundred fifty".