6556210541 has 4 divisors (see below), whose sum is σ = 6563636352. Its totient is φ = 6548784732.

The previous prime is 6556210501. The next prime is 6556210649. The reversal of 6556210541 is 1450126556.

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 a de Polignac number, because none of the positive numbers 2^k-6556210541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6556210501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3711581 + ... + 3713346.

It is an arithmetic number, because the mean of its divisors is an integer number (1640909088).

Almost surely, 2^6556210541 is an apocalyptic number.

It is an amenable number.

6556210541 is a deficient number, since it is larger than the sum of its proper divisors (7425811).

6556210541 is an equidigital number, since it uses as much as digits as its factorization.

6556210541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7425810.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 6556210541 is about 80970.4300408489. The cubic root of 6556210541 is about 1871.6197982530.

The spelling of 6556210541 in words is "six billion, five hundred fifty-six million, two hundred ten thousand, five hundred forty-one".