5281524891 has 30 divisors (see below), whose sum is σ = 8247696380. Its totient is φ = 3367901592.

The previous prime is 5281524883. The next prime is 5281524959. The reversal of 5281524891 is 1984251825.

5281524891 is a `hidden beast` number, since 528 + 15 + 24 + 8 + 91 = 666.

It is not a de Polignac number, because 5281524891 - 2³ = 5281524883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5281524851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 18781 + ... + 104478.

Almost surely, 2^5281524891 is an apocalyptic number.

5281524891 is a deficient number, since it is larger than the sum of its proper divisors (2966171489).

5281524891 is a wasteful number, since it uses less digits than its factorization.

5281524891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123317 (or 123285 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 5281524891 is about 72674.1005517096. The cubic root of 5281524891 is about 1741.4851559026.

The spelling of 5281524891 in words is "five billion, two hundred eighty-one million, five hundred twenty-four thousand, eight hundred ninety-one".