5527021778 has 4 divisors (see below), whose sum is σ = 8290532670. Its totient is φ = 2763510888.

The previous prime is 5527021751. The next prime is 5527021789. The reversal of 5527021778 is 8771207255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8771207255 = 5 ⋅1754241451.

It can be written as a sum of positive squares in only one way, i.e., 3009290449 + 2517731329 = 54857^2 + 50177^2 .

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 as a sum of consecutive naturals, namely, 1381755443 + ... + 1381755446.

Almost surely, 2^5527021778 is an apocalyptic number.

5527021778 is a deficient number, since it is larger than the sum of its proper divisors (2763510892).

5527021778 is a wasteful number, since it uses less digits than its factorization.

5527021778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763510891.

The product of its (nonzero) digits is 274400, while the sum is 44.

The square root of 5527021778 is about 74343.9424432146. The cubic root of 5527021778 is about 1768.0602429685.

The spelling of 5527021778 in words is "five billion, five hundred twenty-seven million, twenty-one thousand, seven hundred seventy-eight".