6506501 has 4 divisors (see below), whose sum is σ = 6535392. Its totient is φ = 6477612.

The previous prime is 6506491. The next prime is 6506557. The reversal of 6506501 is 1056056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6506501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14105 + ... + 14558.

It is an arithmetic number, because the mean of its divisors is an integer number (1633848).

Almost surely, 2^6506501 is an apocalyptic number.

It is an amenable number.

6506501 is a deficient number, since it is larger than the sum of its proper divisors (28891).

6506501 is a wasteful number, since it uses less digits than its factorization.

6506501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28890.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 6506501 is about 2550.7843891635. The cubic root of 6506501 is about 186.6877551996.

It can be divided in two parts, 6506 and 501, that added together give a palindrome (7007).

The spelling of 6506501 in words is "six million, five hundred six thousand, five hundred one".