5557819780 has 24 divisors (see below), whose sum is σ = 11956092120. Its totient is φ = 2168904960.

The previous prime is 5557819777. The next prime is 5557819823. The reversal of 5557819780 is 879187555.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 453860416 + 5103959364 = 21304^2 + 71442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3388095 + ... + 3389734.

It is an arithmetic number, because the mean of its divisors is an integer number (498170505).

Almost surely, 2^5557819780 is an apocalyptic number.

It is an amenable number.

5557819780 is an abundant number, since it is smaller than the sum of its proper divisors (6398272340).

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

5557819780 is a wasteful number, since it uses less digits than its factorization.

5557819780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777879 (or 6777877 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 55.

The square root of 5557819780 is about 74550.7865820341. The cubic root of 5557819780 is about 1771.3381923749.

The spelling of 5557819780 in words is "five billion, five hundred fifty-seven million, eight hundred nineteen thousand, seven hundred eighty".