5521536523 has 4 divisors (see below), whose sum is σ = 5537449080. Its totient is φ = 5505623968.

The previous prime is 5521536509. The next prime is 5521536563. The reversal of 5521536523 is 3256351255.

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

It is a cyclic number.

It is not a de Polignac number, because 5521536523 - 2¹⁷ = 5521405451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5521536563) 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 3 ways as a sum of consecutive naturals, for example, 7955758 + ... + 7956451.

It is an arithmetic number, because the mean of its divisors is an integer number (1384362270).

Almost surely, 2^5521536523 is an apocalyptic number.

5521536523 is a deficient number, since it is larger than the sum of its proper divisors (15912557).

5521536523 is a wasteful number, since it uses less digits than its factorization.

5521536523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15912556.

The product of its digits is 135000, while the sum is 37.

The square root of 5521536523 is about 74307.0422167374. The cubic root of 5521536523 is about 1767.4751495992.

Adding to 5521536523 its reverse (3256351255), we get a palindrome (8777887778).

The spelling of 5521536523 in words is "five billion, five hundred twenty-one million, five hundred thirty-six thousand, five hundred twenty-three".