505423012 has 6 divisors (see below), whose sum is σ = 884490278. Its totient is φ = 252711504.

The previous prime is 505422947. The next prime is 505423013. The reversal of 505423012 is 210324505.

It can be written as a sum of positive squares in only one way, i.e., 444956836 + 60466176 = 21094^2 + 7776^2 .

It is not an unprimeable number, because it can be changed into a prime (505423013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63177873 + ... + 63177880.

Almost surely, 2^505423012 is an apocalyptic number.

It is an amenable number.

505423012 is a deficient number, since it is larger than the sum of its proper divisors (379067266).

505423012 is a wasteful number, since it uses less digits than its factorization.

505423012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126355757 (or 126355755 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 505423012 is about 22481.6149775767. The cubic root of 505423012 is about 796.5597121482.

Adding to 505423012 its reverse (210324505), we get a palindrome (715747517).

The spelling of 505423012 in words is "five hundred five million, four hundred twenty-three thousand, twelve".