5221587538 has 4 divisors (see below), whose sum is σ = 7832381310. Its totient is φ = 2610793768.

The previous prime is 5221587533. The next prime is 5221587583. The reversal of 5221587538 is 8357851225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5175795249 + 45792289 = 71943^2 + 6767^2 .

It is not an unprimeable number, because it can be changed into a prime (5221587533) 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 as a sum of consecutive naturals, namely, 1305396883 + ... + 1305396886.

Almost surely, 2^5221587538 is an apocalyptic number.

5221587538 is a deficient number, since it is larger than the sum of its proper divisors (2610793772).

5221587538 is a wasteful number, since it uses less digits than its factorization.

5221587538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610793771.

The product of its digits is 672000, while the sum is 46.

The square root of 5221587538 is about 72260.5531254778. The cubic root of 5221587538 is about 1734.8723327067.

The spelling of 5221587538 in words is "five billion, two hundred twenty-one million, five hundred eighty-seven thousand, five hundred thirty-eight".