6520290 has 64 divisors (see below), whose sum is σ = 18213120. Its totient is φ = 1463040.

The previous prime is 6520289. The next prime is 6520309. The reversal of 6520290 is 920256.

It is a self number, because there is not a number n which added to its sum of digits gives 6520290.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12556 + ... + 13064.

It is an arithmetic number, because the mean of its divisors is an integer number (284580).

Almost surely, 2^6520290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6520290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9106560).

6520290 is an abundant number, since it is smaller than the sum of its proper divisors (11692830).

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

6520290 is a wasteful number, since it uses less digits than its factorization.

6520290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 6520290 is about 2553.4858527119. The cubic root of 6520290 is about 186.8195424228.

The spelling of 6520290 in words is "six million, five hundred twenty thousand, two hundred ninety".