5525527778 has 16 divisors (see below), whose sum is σ = 8504200320. Its totient is φ = 2691145296.

The previous prime is 5525527687. The next prime is 5525527781. The reversal of 5525527778 is 8777255255.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 55973 + ... + 119096.

It is an arithmetic number, because the mean of its divisors is an integer number (531512520).

Almost surely, 2^5525527778 is an apocalyptic number.

5525527778 is a deficient number, since it is larger than the sum of its proper divisors (2978672542).

5525527778 is a wasteful number, since it uses less digits than its factorization.

5525527778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175481.

The product of its digits is 6860000, while the sum is 53.

The square root of 5525527778 is about 74333.8938708312. The cubic root of 5525527778 is about 1767.9009214780.

The spelling of 5525527778 in words is "five billion, five hundred twenty-five million, five hundred twenty-seven thousand, seven hundred seventy-eight".