5221785400 has 48 divisors (see below), whose sum is σ = 13074553800. Its totient is φ = 1928042880.

The previous prime is 5221785389. The next prime is 5221785403. The reversal of 5221785400 is 45871225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221785403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1001590 + ... + 1006789.

Almost surely, 2^5221785400 is an apocalyptic number.

5221785400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5221785400 is an abundant number, since it is smaller than the sum of its proper divisors (7852768400).

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

5221785400 is a wasteful number, since it uses less digits than its factorization.

5221785400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008408 (or 2008399 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 5221785400 is about 72261.9221997312. The cubic root of 5221785400 is about 1734.8942456448.

The spelling of 5221785400 in words is "five billion, two hundred twenty-one million, seven hundred eighty-five thousand, four hundred".