6520494 has 8 divisors (see below), whose sum is σ = 13041000. Its totient is φ = 2173496.

The previous prime is 6520487. The next prime is 6520499. The reversal of 6520494 is 4940256.

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

6520494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520499) 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, 543369 + ... + 543380.

It is an arithmetic number, because the mean of its divisors is an integer number (1630125).

Almost surely, 2^6520494 is an apocalyptic number.

6520494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6520494 is a wasteful number, since it uses less digits than its factorization.

6520494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086754.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 6520494 is about 2553.5257977941. The cubic root of 6520494 is about 186.8214907405.

The spelling of 6520494 in words is "six million, five hundred twenty thousand, four hundred ninety-four".