11032550521 has 4 divisors (see below), whose sum is σ = 11034572544. Its totient is φ = 11030528500.

The previous prime is 11032550519. The next prime is 11032550563. The reversal of 11032550521 is 12505523011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12505523011 = 81457 ⋅153523.

It is a cyclic number.

It is not a de Polignac number, because 11032550521 - 2¹ = 11032550519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11032550821) 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, 1002805 + ... + 1013746.

It is an arithmetic number, because the mean of its divisors is an integer number (2758643136).

Almost surely, 2^11032550521 is an apocalyptic number.

It is an amenable number.

11032550521 is a deficient number, since it is larger than the sum of its proper divisors (2022023).

11032550521 is an equidigital number, since it uses as much as digits as its factorization.

11032550521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022022.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 11032550521 in words is "eleven billion, thirty-two million, five hundred fifty thousand, five hundred twenty-one".