5506243521 has 4 divisors (see below), whose sum is σ = 7341658032. Its totient is φ = 3670829012.

The previous prime is 5506243471. The next prime is 5506243537. The reversal of 5506243521 is 1253426055.

5506243521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 5506243521 - 2¹¹ = 5506241473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5506243571) 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, 917707251 + ... + 917707256.

It is an arithmetic number, because the mean of its divisors is an integer number (1835414508).

Almost surely, 2^5506243521 is an apocalyptic number.

It is an amenable number.

5506243521 is a deficient number, since it is larger than the sum of its proper divisors (1835414511).

5506243521 is a wasteful number, since it uses less digits than its factorization.

5506243521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835414510.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 5506243521 is about 74204.0667416551. The cubic root of 5506243521 is about 1765.8418485331.

Adding to 5506243521 its reverse (1253426055), we get a palindrome (6759669576).

The spelling of 5506243521 in words is "five billion, five hundred six million, two hundred forty-three thousand, five hundred twenty-one".