5242245987 has 64 divisors (see below), whose sum is σ = 8424207360. Its totient is φ = 2886033920.

The previous prime is 5242245949. The next prime is 5242246001. The reversal of 5242245987 is 7895422425.

It is not a de Polignac number, because 5242245987 - 2¹⁹ = 5241721699 is a prime.

It is a super-2 number, since 2×5242245987² = 54962285976435208338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5242245487) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 1967218 + ... + 1969880.

It is an arithmetic number, because the mean of its divisors is an integer number (131628240).

Almost surely, 2^5242245987 is an apocalyptic number.

5242245987 is a deficient number, since it is larger than the sum of its proper divisors (3181961373).

5242245987 is a wasteful number, since it uses less digits than its factorization.

5242245987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745 (or 2723 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The square root of 5242245987 is about 72403.3561860222. The cubic root of 5242245987 is about 1737.1572451028.

The spelling of 5242245987 in words is "five billion, two hundred forty-two million, two hundred forty-five thousand, nine hundred eighty-seven".