505055508 has 48 divisors (see below), whose sum is σ = 1191925056. Its totient is φ = 166440960.

The previous prime is 505055501. The next prime is 505055519. The reversal of 505055508 is 805550505.

It is a super-2 number, since 2×505055508² = 510162132322276128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505055501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437460 + ... + 438612.

It is an arithmetic number, because the mean of its divisors is an integer number (24831772).

Almost surely, 2^505055508 is an apocalyptic number.

It is an amenable number.

505055508 is an abundant number, since it is smaller than the sum of its proper divisors (686869548).

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

505055508 is a wasteful number, since it uses less digits than its factorization.

505055508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 505055508 is about 22473.4400570985. The cubic root of 505055508 is about 796.3666000722.

The spelling of 505055508 in words is "five hundred five million, fifty-five thousand, five hundred eight".