5220511242400 has 72 divisors (see below), whose sum is σ = 13415340113280. Its totient is φ = 1978298991360.

The previous prime is 5220511242389. The next prime is 5220511242403. The reversal of 5220511242400 is 42421150225.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5220511242403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171712144 + ... + 171742543.

It is an arithmetic number, because the mean of its divisors is an integer number (186324168240).

Almost surely, 2^{5220511242400} is an apocalyptic number.

5220511242400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5220511242400 is an abundant number, since it is smaller than the sum of its proper divisors (8194828870880).

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

5220511242400 is a wasteful number, since it uses less digits than its factorization.

5220511242400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343454726 (or 343454713 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 5220511242400 its reverse (42421150225), we get a palindrome (5262932392625).

The spelling of 5220511242400 in words is "five trillion, two hundred twenty billion, five hundred eleven million, two hundred forty-two thousand, four hundred".