530545313400520 has 128 divisors (see below), whose sum is σ = 1312540659302400. Its totient is φ = 191400759648000.

The previous prime is 530545313400511. The next prime is 530545313400587. The reversal of 530545313400520 is 25004313545035.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2170871691 + ... + 2171116069.

It is an arithmetic number, because the mean of its divisors is an integer number (10254223900800).

Almost surely, 2^{530545313400520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530545313400520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656270329651200).

530545313400520 is an abundant number, since it is smaller than the sum of its proper divisors (781995345901880).

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

530545313400520 is a wasteful number, since it uses less digits than its factorization.

530545313400520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283379 (or 283375 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

Adding to 530545313400520 its reverse (25004313545035), we get a palindrome (555549626945555).

The spelling of 530545313400520 in words is "five hundred thirty trillion, five hundred forty-five billion, three hundred thirteen million, four hundred thousand, five hundred twenty".