6557913 has 12 divisors (see below), whose sum is σ = 9587760. Its totient is φ = 4318776.

The previous prime is 6557867. The next prime is 6557939. The reversal of 6557913 is 3197556.

It is a happy number.

It is not a de Polignac number, because 6557913 - 2⁸ = 6557657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6557963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3643 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (798980).

Almost surely, 2^6557913 is an apocalyptic number.

It is an amenable number.

6557913 is a deficient number, since it is larger than the sum of its proper divisors (3029847).

6557913 is a wasteful number, since it uses less digits than its factorization.

6557913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8868 (or 8865 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 6557913 is about 2560.8422442626. The cubic root of 6557913 is about 187.1781786147.

The spelling of 6557913 in words is "six million, five hundred fifty-seven thousand, nine hundred thirteen".