5518387522 has 4 divisors (see below), whose sum is σ = 8277581286. Its totient is φ = 2759193760.

The previous prime is 5518387519. The next prime is 5518387529. The reversal of 5518387522 is 2257838155.

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., 3865233241 + 1653154281 = 62171^2 + 40659^2 .

It is not an unprimeable number, because it can be changed into a prime (5518387529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1379596879 + ... + 1379596882.

Almost surely, 2^5518387522 is an apocalyptic number.

5518387522 is a deficient number, since it is larger than the sum of its proper divisors (2759193764).

5518387522 is a wasteful number, since it uses less digits than its factorization.

5518387522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759193763.

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

The square root of 5518387522 is about 74285.8500792715. The cubic root of 5518387522 is about 1767.1390813446.

The spelling of 5518387522 in words is "five billion, five hundred eighteen million, three hundred eighty-seven thousand, five hundred twenty-two".