505231156 has 48 divisors (see below), whose sum is σ = 958809600. Its totient is φ = 232227072.

The previous prime is 505231117. The next prime is 505231159. The reversal of 505231156 is 651132505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505231159) 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, 1090981 + ... + 1091443.

It is an arithmetic number, because the mean of its divisors is an integer number (19975200).

Almost surely, 2^505231156 is an apocalyptic number.

It is an amenable number.

505231156 is a deficient number, since it is larger than the sum of its proper divisors (453578444).

505231156 is a wasteful number, since it uses less digits than its factorization.

505231156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 505231156 is about 22477.3476193256. The cubic root of 505231156 is about 796.4589093898.

The spelling of 505231156 in words is "five hundred five million, two hundred thirty-one thousand, one hundred fifty-six".