6450252271 has 4 divisors (see below), whose sum is σ = 6470992944. Its totient is φ = 6429511600.

The previous prime is 6450252253. The next prime is 6450252287. The reversal of 6450252271 is 1722520546.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6450252271 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 (6450252241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10369870 + ... + 10370491.

It is an arithmetic number, because the mean of its divisors is an integer number (1617748236).

Almost surely, 2^6450252271 is an apocalyptic number.

6450252271 is a deficient number, since it is larger than the sum of its proper divisors (20740673).

6450252271 is a wasteful number, since it uses less digits than its factorization.

6450252271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20740672.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 6450252271 is about 80313.4625763327. The cubic root of 6450252271 is about 1861.4822530610.

The spelling of 6450252271 in words is "six billion, four hundred fifty million, two hundred fifty-two thousand, two hundred seventy-one".