6556572 has 48 divisors (see below), whose sum is σ = 18547200. Its totient is φ = 1986480.

The previous prime is 6556567. The next prime is 6556601. The reversal of 6556572 is 2756556.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 6 + 5 + 5⁵ + 6⁸ + 5⁹ + 7⁷ + 2²¹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572 + ... + 3947.

It is an arithmetic number, because the mean of its divisors is an integer number (386400).

Almost surely, 2^6556572 is an apocalyptic number.

It is an amenable number.

6556572 is an abundant number, since it is smaller than the sum of its proper divisors (11990628).

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

6556572 is a wasteful number, since it uses less digits than its factorization.

6556572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543 (or 5535 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 6556572 is about 2560.5804029555. The cubic root of 6556572 is about 187.1654193192.

It can be divided in two parts, 655 and 6572, that added together give a palindrome (7227).

The spelling of 6556572 in words is "six million, five hundred fifty-six thousand, five hundred seventy-two".