5552780856 has 128 divisors (see below), whose sum is σ = 17682624000. Its totient is φ = 1414582272.

The previous prime is 5552780767. The next prime is 5552780861. The reversal of 5552780856 is 6580872555.

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 a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 5552780799 and 5552780808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3100 + ... + 105428.

It is an arithmetic number, because the mean of its divisors is an integer number (138145500).

Almost surely, 2^5552780856 is an apocalyptic number.

5552780856 is a gapful number since it is divisible by the number (56) 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 5552780856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8841312000).

5552780856 is an abundant number, since it is smaller than the sum of its proper divisors (12129843144).

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

5552780856 is a wasteful number, since it uses less digits than its factorization.

5552780856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102381 (or 102377 counting only the distinct ones).

The product of its (nonzero) digits is 3360000, while the sum is 51.

The square root of 5552780856 is about 74516.9836748643. The cubic root of 5552780856 is about 1770.8027103766.

The spelling of 5552780856 in words is "five billion, five hundred fifty-two million, seven hundred eighty thousand, eight hundred fifty-six".