5220215400 has 96 divisors (see below), whose sum is σ = 16404485760. Its totient is φ = 1372976640.

The previous prime is 5220215369. The next prime is 5220215423. The reversal of 5220215400 is 45120225.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15792 + ... + 103391.

It is an arithmetic number, because the mean of its divisors is an integer number (170880060).

Almost surely, 2^5220215400 is an apocalyptic number.

5220215400 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 5220215400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8202242880).

5220215400 is an abundant number, since it is smaller than the sum of its proper divisors (11184270360).

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

5220215400 is a wasteful number, since it uses less digits than its factorization.

5220215400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119275 (or 119266 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 5220215400 is about 72251.0581237396. The cubic root of 5220215400 is about 1734.7203551212.

Adding to 5220215400 its reverse (45120225), we get a palindrome (5265335625).

The spelling of 5220215400 in words is "five billion, two hundred twenty million, two hundred fifteen thousand, four hundred".