505055000044 has 24 divisors (see below), whose sum is σ = 1014639653888. Its totient is φ = 215481502800.

The previous prime is 505055000041. The next prime is 505055000059. The reversal of 505055000044 is 440000550505.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 505054999976 and 505055000021.

It is not an unprimeable number, because it can be changed into a prime (505055000041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40436982 + ... + 40449469.

Almost surely, 2^505055000044 is an apocalyptic number.

It is an amenable number.

505055000044 is an abundant number, since it is smaller than the sum of its proper divisors (509584653844).

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

505055000044 is a wasteful number, since it uses less digits than its factorization.

505055000044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80886685 (or 80886683 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

Adding to 505055000044 its reverse (440000550505), we get a palindrome (945055550549).

The spelling of 505055000044 in words is "five hundred five billion, fifty-five million, forty-four", and thus it is an aban number.