5387018249 has 4 divisors (see below), whose sum is σ = 5518408980. Its totient is φ = 5255627520.

The previous prime is 5387018243. The next prime is 5387018251. The reversal of 5387018249 is 9428107835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9428107835 = 5 ⋅1885621567.

It can be written as a sum of positive squares in 2 ways, for example, as 2175756025 + 3211262224 = 46645^2 + 56668^2 .

It is a cyclic number.

It is not a de Polignac number, because 5387018249 - 2⁴ = 5387018233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5387018243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65695304 + ... + 65695385.

It is an arithmetic number, because the mean of its divisors is an integer number (1379602245).

Almost surely, 2^5387018249 is an apocalyptic number.

It is an amenable number.

5387018249 is a deficient number, since it is larger than the sum of its proper divisors (131390731).

5387018249 is a wasteful number, since it uses less digits than its factorization.

5387018249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131390730.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 5387018249 is about 73396.3095053150. The cubic root of 5387018249 is about 1753.0036307444.

The spelling of 5387018249 in words is "five billion, three hundred eighty-seven million, eighteen thousand, two hundred forty-nine".