6556413 has 4 divisors (see below), whose sum is σ = 8741888. Its totient is φ = 4370940.

The previous prime is 6556399. The next prime is 6556421. The reversal of 6556413 is 3146556.

6556413 is digitally balanced in base 4, 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 not a de Polignac number, because 6556413 - 2⁴ = 6556397 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6556483) 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, 1092733 + ... + 1092738.

It is an arithmetic number, because the mean of its divisors is an integer number (2185472).

Almost surely, 2^6556413 is an apocalyptic number.

It is an amenable number.

6556413 is a deficient number, since it is larger than the sum of its proper divisors (2185475).

6556413 is a wasteful number, since it uses less digits than its factorization.

6556413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185474.

The product of its digits is 10800, while the sum is 30.

The square root of 6556413 is about 2560.5493551189. The cubic root of 6556413 is about 187.1639063567.

The spelling of 6556413 in words is "six million, five hundred fifty-six thousand, four hundred thirteen".