520700752000 has 768 divisors, whose sum is σ = 1623918572640. Its totient is φ = 164364288000.

The previous prime is 520700751997. The next prime is 520700752037. The reversal of 520700752000 is 257007025.

It can be written as a sum of positive squares in 16 ways, for example, as 59290302016 + 461410449984 = 243496^2 + 679272^2 .

It is a super-2 number, since 2×520700752000² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520700752000.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 427855392 + ... + 427856608.

Almost surely, 2^520700752000 is an apocalyptic number.

520700752000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520700752000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811959286320).

520700752000 is an abundant number, since it is smaller than the sum of its proper divisors (1103217820640).

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

520700752000 is a wasteful number, since it uses less digits than its factorization.

520700752000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

Adding to 520700752000 its reverse (257007025), we get a palindrome (520957759025).

The spelling of 520700752000 in words is "five hundred twenty billion, seven hundred million, seven hundred fifty-two thousand".