6516249 has 4 divisors (see below), whose sum is σ = 8688336. Its totient is φ = 4344164.

The previous prime is 6516241. The next prime is 6516269. The reversal of 6516249 is 9426156.

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 not a de Polignac number, because 6516249 - 2³ = 6516241 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6516241) 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, 1086039 + ... + 1086044.

It is an arithmetic number, because the mean of its divisors is an integer number (2172084).

Almost surely, 2^6516249 is an apocalyptic number.

It is an amenable number.

6516249 is a deficient number, since it is larger than the sum of its proper divisors (2172087).

6516249 is a wasteful number, since it uses less digits than its factorization.

6516249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172086.

The product of its digits is 12960, while the sum is 33.

The square root of 6516249 is about 2552.6944588023. The cubic root of 6516249 is about 186.7809401631.

The spelling of 6516249 in words is "six million, five hundred sixteen thousand, two hundred forty-nine".