505303011 has 12 divisors (see below), whose sum is σ = 733344040. Its totient is φ = 335270880.

The previous prime is 505303003. The next prime is 505303021. The reversal of 505303011 is 110303505.

It is a happy number.

It is not a de Polignac number, because 505303011 - 2³ = 505303003 is a prime.

It is a super-2 number, since 2×505303011² = 510662265851332242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505303021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131146 + ... + 134943.

Almost surely, 2^505303011 is an apocalyptic number.

505303011 is a deficient number, since it is larger than the sum of its proper divisors (228041029).

505303011 is a wasteful number, since it uses less digits than its factorization.

505303011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266306 (or 266303 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 505303011 is about 22478.9459494879. The cubic root of 505303011 is about 796.4966656006.

Adding to 505303011 its reverse (110303505), we get a palindrome (615606516).

The spelling of 505303011 in words is "five hundred five million, three hundred three thousand, eleven".