505005055000 has 40 divisors (see below), whose sum is σ = 1183226855580. Its totient is φ = 202002020000.

The previous prime is 505005054971. The next prime is 505005055069. The reversal of 505005055000 is 550500505.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50495506 + ... + 50505505.

Almost surely, 2^505005055000 is an apocalyptic number.

505005055000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505005055000 is an abundant number, since it is smaller than the sum of its proper divisors (678221800580).

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

505005055000 is a wasteful number, since it uses less digits than its factorization.

505005055000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001037 (or 101001018 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

Adding to 505005055000 its reverse (550500505), we get a palindrome (505555555505).

The spelling of 505005055000 in words is "five hundred five billion, five million, fifty-five thousand".