511140650 has 12 divisors (see below), whose sum is σ = 950721702. Its totient is φ = 204456240.

The previous prime is 511140593. The next prime is 511140653. The reversal of 511140650 is 56041115.

It can be written as a sum of positive squares in 3 ways, for example, as 455950609 + 55190041 = 21353^2 + 7429^2 .

It is a super-2 number, since 2×511140650² = 522529528164845000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511140653) 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 in 5 ways as a sum of consecutive naturals, for example, 5111357 + ... + 5111456.

Almost surely, 2^511140650 is an apocalyptic number.

511140650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

511140650 is a deficient number, since it is larger than the sum of its proper divisors (439581052).

511140650 is a wasteful number, since it uses less digits than its factorization.

511140650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222825 (or 10222820 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 511140650 is about 22608.4198917129. The cubic root of 511140650 is about 799.5521712335.

Adding to 511140650 its reverse (56041115), we get a palindrome (567181765).

The spelling of 511140650 in words is "five hundred eleven million, one hundred forty thousand, six hundred fifty".