6475540 has 48 divisors (see below), whose sum is σ = 14288400. Its totient is φ = 2462720.

The previous prime is 6475537. The next prime is 6475543. The reversal of 6475540 is 455746.

6475540 = T₁₉₅ + T₁₉₆ + ... + T₃₅₈.

It is a happy number.

6475540 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6475537) and next prime (6475543).

It can be written as a sum of positive squares in 8 ways, for example, as 1258884 + 5216656 = 1122^2 + 2284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6475543) 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, 43386 + ... + 43534.

It is an arithmetic number, because the mean of its divisors is an integer number (297675).

Almost surely, 2^6475540 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 6475540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7144200).

6475540 is an abundant number, since it is smaller than the sum of its proper divisors (7812860).

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

6475540 is a wasteful number, since it uses less digits than its factorization.

6475540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 6475540 is about 2544.7082347491. The cubic root of 6475540 is about 186.3911681424.

The spelling of 6475540 in words is "six million, four hundred seventy-five thousand, five hundred forty".