6512252021 has 8 divisors (see below), whose sum is σ = 7126976064. Its totient is φ = 5901311520.

The previous prime is 6512252009. The next prime is 6512252053. The reversal of 6512252021 is 1202522156.

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

It is a cyclic number.

It is not a de Polignac number, because 6512252021 - 2¹⁴ = 6512235637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512257021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942281 + ... + 949166.

It is an arithmetic number, because the mean of its divisors is an integer number (890872008).

Almost surely, 2^6512252021 is an apocalyptic number.

It is an amenable number.

6512252021 is a deficient number, since it is larger than the sum of its proper divisors (614724043).

6512252021 is a wasteful number, since it uses less digits than its factorization.

6512252021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891771.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 6512252021 is about 80698.5255193675. The cubic root of 6512252021 is about 1867.4274271794.

Adding to 6512252021 its reverse (1202522156), we get a palindrome (7714774177).

The spelling of 6512252021 in words is "six billion, five hundred twelve million, two hundred fifty-two thousand, twenty-one".