511800852 has 12 divisors (see below), whose sum is σ = 1194202016. Its totient is φ = 170600280.

The previous prime is 511800829. The next prime is 511800857. The reversal of 511800852 is 258008115.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×511800852² = 523880224215851808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511800857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21325024 + ... + 21325047.

Almost surely, 2^511800852 is an apocalyptic number.

It is an amenable number.

511800852 is an abundant number, since it is smaller than the sum of its proper divisors (682401164).

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

511800852 is a wasteful number, since it uses less digits than its factorization.

511800852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42650078 (or 42650076 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 511800852 is about 22623.0159793074. The cubic root of 511800852 is about 799.8962636324.

Adding to 511800852 its reverse (258008115), we get a palindrome (769808967).

The spelling of 511800852 in words is "five hundred eleven million, eight hundred thousand, eight hundred fifty-two".