5528181987 has 36 divisors (see below), whose sum is σ = 8418646920. Its totient is φ = 3585263040.

The previous prime is 5528181959. The next prime is 5528182003. The reversal of 5528181987 is 7891818255.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

5528181987 is a `hidden beast` number, since 552 + 8 + 1 + 8 + 1 + 9 + 87 = 666.

It is not a de Polignac number, because 5528181987 - 2⁸ = 5528181731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5528181937) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15839889 + ... + 15840237.

Almost surely, 2^5528181987 is an apocalyptic number.

5528181987 is a deficient number, since it is larger than the sum of its proper divisors (2890464933).

5528181987 is an frugal number, since it uses more digits than its factorization.

5528181987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 393 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 54.

The square root of 5528181987 is about 74351.7450165092. The cubic root of 5528181987 is about 1768.1839488853.

The spelling of 5528181987 in words is "five billion, five hundred twenty-eight million, one hundred eighty-one thousand, nine hundred eighty-seven".