5306780556 has 144 divisors (see below), whose sum is σ = 17459729280. Its totient is φ = 1378369440.

The previous prime is 5306780519. The next prime is 5306780581. The reversal of 5306780556 is 6550876035.

5306780556 is a `hidden beast` number, since 5 + 30 + 67 + 8 + 0 + 556 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12631 + ... + 103793.

It is an arithmetic number, because the mean of its divisors is an integer number (121248120).

Almost surely, 2^5306780556 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 5306780556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8729864640).

5306780556 is an abundant number, since it is smaller than the sum of its proper divisors (12152948724).

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

5306780556 is a wasteful number, since it uses less digits than its factorization.

5306780556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91201 (or 91186 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 5306780556 is about 72847.6530575969. The cubic root of 5306780556 is about 1744.2566058152.

The spelling of 5306780556 in words is "five billion, three hundred six million, seven hundred eighty thousand, five hundred fifty-six".