505870650 has 48 divisors (see below), whose sum is σ = 1393958400. Its totient is φ = 134898480.

The previous prime is 505870643. The next prime is 505870657. The reversal of 505870650 is 56078505.

It is an interprime number because it is at equal distance from previous prime (505870643) and next prime (505870657).

It is a super-2 number, since 2×505870650² = 511810229062845000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505870657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186010 + ... + 188709.

It is an arithmetic number, because the mean of its divisors is an integer number (29040800).

Almost surely, 2^505870650 is an apocalyptic number.

505870650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505870650 is an abundant number, since it is smaller than the sum of its proper divisors (888087750).

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

505870650 is a wasteful number, since it uses less digits than its factorization.

505870650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374740 (or 374729 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 505870650 is about 22491.5684201880. The cubic root of 505870650 is about 796.7948057707.

The spelling of 505870650 in words is "five hundred five million, eight hundred seventy thousand, six hundred fifty".