6521055 has 16 divisors (see below), whose sum is σ = 10567680. Its totient is φ = 3433248.

The previous prime is 6521041. The next prime is 6521057. The reversal of 6521055 is 5501256.

6521055 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6521055 - 2⁵ = 6521023 is a prime.

6521055 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6521057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1567 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (660480).

Almost surely, 2^6521055 is an apocalyptic number.

6521055 is a deficient number, since it is larger than the sum of its proper divisors (4046625).

6521055 is a wasteful number, since it uses less digits than its factorization.

6521055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 6521055 is about 2553.6356435482. The cubic root of 6521055 is about 186.8268484046.

The spelling of 6521055 in words is "six million, five hundred twenty-one thousand, fifty-five".