5520002621 has 4 divisors (see below), whose sum is σ = 6308574432. Its totient is φ = 4731430812.

The previous prime is 5520002617. The next prime is 5520002639. The reversal of 5520002621 is 1262000255.

5520002621 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 5520002621 - 2² = 5520002617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5520002671) 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, 394285895 + ... + 394285908.

It is an arithmetic number, because the mean of its divisors is an integer number (1577143608).

Almost surely, 2^5520002621 is an apocalyptic number.

It is an amenable number.

5520002621 is a deficient number, since it is larger than the sum of its proper divisors (788571811).

5520002621 is an equidigital number, since it uses as much as digits as its factorization.

5520002621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788571810.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5520002621 is about 74296.7201227618. The cubic root of 5520002621 is about 1767.3114641982.

Adding to 5520002621 its reverse (1262000255), we get a palindrome (6782002876).

The spelling of 5520002621 in words is "five billion, five hundred twenty million, two thousand, six hundred twenty-one".