505155112 has 96 divisors (see below), whose sum is σ = 1210187520. Its totient is φ = 195471360.

The previous prime is 505155103. The next prime is 505155113. The reversal of 505155112 is 211551505.

It is not an unprimeable number, because it can be changed into a prime (505155113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 831913 + ... + 832519.

It is an arithmetic number, because the mean of its divisors is an integer number (12606120).

Almost surely, 2^505155112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505155112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605093760).

505155112 is an abundant number, since it is smaller than the sum of its proper divisors (705032408).

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

505155112 is a wasteful number, since it uses less digits than its factorization.

505155112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 505155112 is about 22475.6559859774. The cubic root of 505155112 is about 796.4189481697.

The spelling of 505155112 in words is "five hundred five million, one hundred fifty-five thousand, one hundred twelve".