6454002521 has 2 divisors, whose sum is σ = 6454002522. Its totient is φ = 6454002520.

The previous prime is 6454002509. The next prime is 6454002539. The reversal of 6454002521 is 1252004546.

6454002521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6082284121 + 371718400 = 77989^2 + 19280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6454002521 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6454005521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3227001260 + 3227001261.

It is an arithmetic number, because the mean of its divisors is an integer number (3227001261).

Almost surely, 2^6454002521 is an apocalyptic number.

It is an amenable number.

6454002521 is a deficient number, since it is larger than the sum of its proper divisors (1).

6454002521 is an equidigital number, since it uses as much as digits as its factorization.

6454002521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 6454002521 is about 80336.8067637742. The cubic root of 6454002521 is about 1861.8429454812.

The spelling of 6454002521 in words is "six billion, four hundred fifty-four million, two thousand, five hundred twenty-one".