505554301000 has 64 divisors (see below), whose sum is σ = 1351996663680. Its totient is φ = 173332900800.

The previous prime is 505554300943. The next prime is 505554301001. The reversal of 505554301000 is 103455505.

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

It is a self number, because there is not a number n which added to its sum of digits gives 505554301000.

It is not an unprimeable number, because it can be changed into a prime (505554301001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36104022 + ... + 36118021.

It is an arithmetic number, because the mean of its divisors is an integer number (21124947870).

Almost surely, 2^505554301000 is an apocalyptic number.

505554301000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505554301000 is an abundant number, since it is smaller than the sum of its proper divisors (846442362680).

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

505554301000 is a wasteful number, since it uses less digits than its factorization.

505554301000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72222071 (or 72222057 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

Adding to 505554301000 its reverse (103455505), we get a palindrome (505657756505).

The spelling of 505554301000 in words is "five hundred five billion, five hundred fifty-four million, three hundred one thousand".