6256520 has 32 divisors (see below), whose sum is σ = 14281920. Its totient is φ = 2466240.

The previous prime is 6256511. The next prime is 6256531. The reversal of 6256520 is 256526.

It is a happy number.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6256520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739 + ... + 3941.

It is an arithmetic number, because the mean of its divisors is an integer number (446310).

Almost surely, 2^6256520 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 6256520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7140960).

6256520 is an abundant number, since it is smaller than the sum of its proper divisors (8025400).

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

6256520 is a wasteful number, since it uses less digits than its factorization.

6256520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 6256520 is about 2501.3036600941. The cubic root of 6256520 is about 184.2656056992.

It can be divided in two parts, 6256 and 520, that added together give a palindrome (6776).

The spelling of 6256520 in words is "six million, two hundred fifty-six thousand, five hundred twenty".