511113808 has 10 divisors (see below), whose sum is σ = 990283034. Its totient is φ = 255556896.

The previous prime is 511113793. The next prime is 511113809. The reversal of 511113808 is 808311115.

It can be written as a sum of positive squares in only one way, i.e., 443018304 + 68095504 = 21048^2 + 8252^2 .

It is a super-2 number, since 2×511113808² = 522474649456521728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511113809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15972291 + ... + 15972322.

Almost surely, 2^511113808 is an apocalyptic number.

It is an amenable number.

511113808 is a deficient number, since it is larger than the sum of its proper divisors (479169226).

511113808 is a wasteful number, since it uses less digits than its factorization.

511113808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31944621 (or 31944615 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 28.

The square root of 511113808 is about 22607.8262555249. The cubic root of 511113808 is about 799.5381751152.

The spelling of 511113808 in words is "five hundred eleven million, one hundred thirteen thousand, eight hundred eight".