6554620 has 48 divisors (see below), whose sum is σ = 14837760. Its totient is φ = 2424384.

The previous prime is 6554617. The next prime is 6554621. The reversal of 6554620 is 264556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6554621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17677 + ... + 18043.

It is an arithmetic number, because the mean of its divisors is an integer number (309120).

Almost surely, 2^6554620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6554620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7418880).

6554620 is an abundant number, since it is smaller than the sum of its proper divisors (8283140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6554620 is a wasteful number, since it uses less digits than its factorization.

6554620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 6554620 is about 2560.1992109990. The cubic root of 6554620 is about 187.1468433946.

Subtracting from 6554620 its reverse (264556), we obtain a square (6290064 = 2508²).

The spelling of 6554620 in words is "six million, five hundred fifty-four thousand, six hundred twenty".