516312750 has 128 divisors (see below), whose sum is σ = 1358622720. Its totient is φ = 130416000.

The previous prime is 516312749. The next prime is 516312757. The reversal of 516312750 is 57213615.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516312757) 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 63 ways as a sum of consecutive naturals, for example, 1232041 + ... + 1232459.

It is an arithmetic number, because the mean of its divisors is an integer number (10614240).

Almost surely, 2^516312750 is an apocalyptic number.

516312750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 516312750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679311360).

516312750 is an abundant number, since it is smaller than the sum of its proper divisors (842309970).

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

516312750 is a wasteful number, since it uses less digits than its factorization.

516312750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 516312750 is about 22722.5163659310. The cubic root of 516312750 is about 802.2399464050.

The spelling of 516312750 in words is "five hundred sixteen million, three hundred twelve thousand, seven hundred fifty".