6450253253 has 4 divisors (see below), whose sum is σ = 6624584460. Its totient is φ = 6275922048.

The previous prime is 6450253207. The next prime is 6450253307. The reversal of 6450253253 is 3523520546.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3907875169 + 2542378084 = 62513^2 + 50422^2 .

It is a cyclic number.

It is not a de Polignac number, because 6450253253 - 2⁶ = 6450253189 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 (6450253853) 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, 87165548 + ... + 87165621.

It is an arithmetic number, because the mean of its divisors is an integer number (1656146115).

Almost surely, 2^6450253253 is an apocalyptic number.

It is an amenable number.

6450253253 is a deficient number, since it is larger than the sum of its proper divisors (174331207).

6450253253 is a wasteful number, since it uses less digits than its factorization.

6450253253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174331206.

The product of its (nonzero) digits is 108000, while the sum is 35.

The square root of 6450253253 is about 80313.4686898779. The cubic root of 6450253253 is about 1861.4823475263.

Adding to 6450253253 its reverse (3523520546), we get a palindrome (9973773799).

The spelling of 6450253253 in words is "six billion, four hundred fifty million, two hundred fifty-three thousand, two hundred fifty-three".