505055520 has 96 divisors (see below), whose sum is σ = 1767709440. Its totient is φ = 134680320.

The previous prime is 505055519. The next prime is 505055521. The reversal of 505055520 is 25550505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (505055519) and next prime (505055521).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (505055521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54136 + ... + 62775.

It is an arithmetic number, because the mean of its divisors is an integer number (18413640).

Almost surely, 2^505055520 is an apocalyptic number.

It is an amenable number.

505055520 is an abundant number, since it is smaller than the sum of its proper divisors (1262653920).

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

505055520 is a wasteful number, since it uses less digits than its factorization.

505055520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116935 (or 116921 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The square root of 505055520 is about 22473.4403240803. The cubic root of 505055520 is about 796.3666063793.

The spelling of 505055520 in words is "five hundred five million, fifty-five thousand, five hundred twenty".