505000550028 has 48 divisors (see below), whose sum is σ = 1269037698656. Its totient is φ = 155377198080.

The previous prime is 505000550011. The next prime is 505000550029. The reversal of 505000550028 is 820055000505.

It is a junction number, because it is equal to n+sod(n) for n = 505000549977 and 505000550004.

It is not an unprimeable number, because it can be changed into a prime (505000550029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3705300 + ... + 3839172.

Almost surely, 2^505000550028 is an apocalyptic number.

It is an amenable number.

505000550028 is an abundant number, since it is smaller than the sum of its proper divisors (764037148628).

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

505000550028 is a wasteful number, since it uses less digits than its factorization.

505000550028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158074 (or 158072 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 505000550028 in words is "five hundred five billion, five hundred fifty thousand, twenty-eight".