5500520421 has 8 divisors (see below), whose sum is σ = 8000757024. Its totient is φ = 3333648720.

The previous prime is 5500520419. The next prime is 5500520437. The reversal of 5500520421 is 1240250055.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5500520421 - 2¹ = 5500520419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5500520391 and 5500520400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500520401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83341186 + ... + 83341251.

It is an arithmetic number, because the mean of its divisors is an integer number (1000094628).

Almost surely, 2^5500520421 is an apocalyptic number.

It is an amenable number.

5500520421 is a deficient number, since it is larger than the sum of its proper divisors (2500236603).

5500520421 is a wasteful number, since it uses less digits than its factorization.

5500520421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166682451.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 5500520421 is about 74165.4934656273. The cubic root of 5500520421 is about 1765.2298406771.

Adding to 5500520421 its reverse (1240250055), we get a palindrome (6740770476).

The spelling of 5500520421 in words is "five billion, five hundred million, five hundred twenty thousand, four hundred twenty-one".