5533976521 has 4 divisors (see below), whose sum is σ = 5683543492. Its totient is φ = 5384409552.

The previous prime is 5533976489. The next prime is 5533976531. The reversal of 5533976521 is 1256793355.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2101305600 + 3432670921 = 45840^2 + 58589^2 .

It is a cyclic number.

It is not a de Polignac number, because 5533976521 - 2⁵ = 5533976489 is a prime.

It is a super-2 number, since 2×5533976521² = 61249792269958526882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5533976531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74783430 + ... + 74783503.

It is an arithmetic number, because the mean of its divisors is an integer number (1420885873).

Almost surely, 2^5533976521 is an apocalyptic number.

It is an amenable number.

5533976521 is a deficient number, since it is larger than the sum of its proper divisors (149566971).

5533976521 is a wasteful number, since it uses less digits than its factorization.

5533976521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149566970.

The product of its digits is 850500, while the sum is 46.

The square root of 5533976521 is about 74390.7018450559. The cubic root of 5533976521 is about 1768.8015252905.

The spelling of 5533976521 in words is "five billion, five hundred thirty-three million, nine hundred seventy-six thousand, five hundred twenty-one".