505120600 has 24 divisors (see below), whose sum is σ = 1174405860. Its totient is φ = 202048160.

The previous prime is 505120597. The next prime is 505120601. The reversal of 505120600 is 6021505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505120601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1262602 + ... + 1263001.

Almost surely, 2^505120600 is an apocalyptic number.

505120600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505120600 is an abundant number, since it is smaller than the sum of its proper divisors (669285260).

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

505120600 is a wasteful number, since it uses less digits than its factorization.

505120600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525619 (or 2525610 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 505120600 is about 22474.8882088432. Note that the first 3 decimals coincide. The cubic root of 505120600 is about 796.4008107461.

It can be divided in two parts, 5051 and 20600, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 505120600 in words is "five hundred five million, one hundred twenty thousand, six hundred".