5563778820 has 96 divisors (see below), whose sum is σ = 15853393920. Its totient is φ = 1457688960.

The previous prime is 5563778813. The next prime is 5563778839. The reversal of 5563778820 is 288773655.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997359 + ... + 1002921.

It is an arithmetic number, because the mean of its divisors is an integer number (165139520).

Almost surely, 2^5563778820 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 5563778820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7926696960).

5563778820 is an abundant number, since it is smaller than the sum of its proper divisors (10289615100).

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

5563778820 is a wasteful number, since it uses less digits than its factorization.

5563778820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865 (or 5863 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The square root of 5563778820 is about 74590.7421869497. The cubic root of 5563778820 is about 1771.9710367463.

The spelling of 5563778820 in words is "five billion, five hundred sixty-three million, seven hundred seventy-eight thousand, eight hundred twenty".