6505238 has 4 divisors (see below), whose sum is σ = 9757860. Its totient is φ = 3252618.

The previous prime is 6505211. The next prime is 6505243. The reversal of 6505238 is 8325056.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6505238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1626308 + ... + 1626311.

It is an arithmetic number, because the mean of its divisors is an integer number (2439465).

Almost surely, 2^6505238 is an apocalyptic number.

6505238 is a deficient number, since it is larger than the sum of its proper divisors (3252622).

6505238 is a wasteful number, since it uses less digits than its factorization.

6505238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252621.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 6505238 is about 2550.5368062430. The cubic root of 6505238 is about 186.6756748771.

It can be divided in two parts, 65052 and 38, that multiplied together give a triangular number (2471976 = T₂₂₂₃).

The spelling of 6505238 in words is "six million, five hundred five thousand, two hundred thirty-eight".