5535541521 has 6 divisors (see below), whose sum is σ = 7995782210. Its totient is φ = 3690361008.

The previous prime is 5535541511. The next prime is 5535541523. The reversal of 5535541521 is 1251455355.

5535541521 is a `hidden beast` number, since 5 + 53 + 554 + 1 + 52 + 1 = 666.

5535541521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3658919121 + 1876622400 = 60489^2 + 43320^2 .

It is not a de Polignac number, because 5535541521 - 2⁷ = 5535541393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5535541523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 307530076 + ... + 307530093.

Almost surely, 2^5535541521 is an apocalyptic number.

It is an amenable number.

5535541521 is a deficient number, since it is larger than the sum of its proper divisors (2460240689).

5535541521 is a wasteful number, since it uses less digits than its factorization.

5535541521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615060175 (or 615060172 counting only the distinct ones).

The product of its digits is 75000, while the sum is 36.

The square root of 5535541521 is about 74401.2198891927. The cubic root of 5535541521 is about 1768.9682476869.

Adding to 5535541521 its reverse (1251455355), we get a palindrome (6786996876).

The spelling of 5535541521 in words is "five billion, five hundred thirty-five million, five hundred forty-one thousand, five hundred twenty-one".