505200380 has 12 divisors (see below), whose sum is σ = 1060920840. Its totient is φ = 202080144.

The previous prime is 505200379. The next prime is 505200383. The reversal of 505200380 is 83002505.

It is a super-3 number, since 3×505200380³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505200383) 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 3 ways as a sum of consecutive naturals, for example, 12629990 + ... + 12630029.

It is an arithmetic number, because the mean of its divisors is an integer number (88410070).

Almost surely, 2^505200380 is an apocalyptic number.

It is an amenable number.

505200380 is an abundant number, since it is smaller than the sum of its proper divisors (555720460).

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

505200380 is a wasteful number, since it uses less digits than its factorization.

505200380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25260028 (or 25260026 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 505200380 is about 22476.6630085518. The cubic root of 505200380 is about 796.4427370451.

Adding to 505200380 its reverse (83002505), we get a palindrome (588202885).

The spelling of 505200380 in words is "five hundred five million, two hundred thousand, three hundred eighty".