6506401 has 8 divisors (see below), whose sum is σ = 7406784. Its totient is φ = 5657520.

The previous prime is 6506399. The next prime is 6506429. The reversal of 6506401 is 1046056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6506401 - 2¹ = 6506399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6506441) 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 7 ways as a sum of consecutive naturals, for example, 12606 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (925848).

Almost surely, 2^6506401 is an apocalyptic number.

It is an amenable number.

6506401 is a deficient number, since it is larger than the sum of its proper divisors (900383).

6506401 is a wasteful number, since it uses less digits than its factorization.

6506401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25751.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 6506401 is about 2550.7647872746. The cubic root of 6506401 is about 186.6867987782.

The spelling of 6506401 in words is "six million, five hundred six thousand, four hundred one".